diff --git a/desktop/qa/desktop_lib/test_desktop_lib.cxx b/desktop/qa/desktop_lib/test_desktop_lib.cxx
index 142427b58ebe..95a915aeeacc 100644
--- a/desktop/qa/desktop_lib/test_desktop_lib.cxx
+++ b/desktop/qa/desktop_lib/test_desktop_lib.cxx
@@ -219,7 +219,6 @@ public:
     void testRenderSearchResult_CommonNode();
     void testNoDuplicateTableSelection();
     void testMultiViewTableSelection();
-    void testColorPaletteCallback();
     void testABI();
 
     CPPUNIT_TEST_SUITE(DesktopLOKTest);
@@ -301,7 +300,6 @@ public:
     CPPUNIT_TEST(testRenderSearchResult_CommonNode);
     CPPUNIT_TEST(testNoDuplicateTableSelection);
     CPPUNIT_TEST(testMultiViewTableSelection);
-    CPPUNIT_TEST(testColorPaletteCallback);
     CPPUNIT_TEST(testABI);
     CPPUNIT_TEST_SUITE_END();
 
@@ -4167,34 +4165,6 @@ void DesktopLOKTest::testMultiViewTableSelection()
     CPPUNIT_ASSERT(!aView1.m_bEmptyTableSelection);
 }
 
-void DesktopLOKTest::testColorPaletteCallback()
-{
-    LibLODocument_Impl* pDocument = loadDoc("ThemeDocument.docx");
-
-    // Create view 1.
-    pDocument->m_pDocumentClass->initializeForRendering(pDocument, "{}");
-    ViewCallback aView1(pDocument);
-    Scheduler::ProcessEventsToIdle();
-    {
-        CPPUNIT_ASSERT_EQUAL(1, aView1.m_nColorPaletteCallbackCount);
-        boost::property_tree::ptree aValues = aView1.m_aColorPaletteCallbackResult.get_child("ThemeColors");
-        CPPUNIT_ASSERT(!aValues.empty());
-        CPPUNIT_ASSERT_EQUAL(size_t(6), aValues.size());
-    }
-
-    // Create view 2.
-    pDocument->m_pDocumentClass->createView(pDocument);
-    pDocument->m_pDocumentClass->initializeForRendering(pDocument, "{}");
-    ViewCallback aView2(pDocument);
-    Scheduler::ProcessEventsToIdle();
-    {
-        CPPUNIT_ASSERT_EQUAL(1, aView2.m_nColorPaletteCallbackCount);
-        boost::property_tree::ptree aValues = aView1.m_aColorPaletteCallbackResult.get_child("ThemeColors");
-        CPPUNIT_ASSERT(!aValues.empty());
-        CPPUNIT_ASSERT_EQUAL(size_t(6), aValues.size());
-    }
-}
-
 namespace {
 
 constexpr size_t classOffset(int i)
diff --git a/docmodel/Library_docmodel.mk b/docmodel/Library_docmodel.mk
index 01e63c4b7e48..11ffbe302639 100644
--- a/docmodel/Library_docmodel.mk
+++ b/docmodel/Library_docmodel.mk
@@ -17,7 +17,6 @@ $(eval $(call gb_Library_add_exception_objects,docmodel,\
     docmodel/source/uno/UnoTheme \
     docmodel/source/theme/ColorSet \
     docmodel/source/theme/Theme \
-    docmodel/source/color/ComplexColorJSON \
     docmodel/source/color/ComplexColor \
     docmodel/source/styles/ChartStyle \
     docmodel/source/styles/ChartColorStyle \
diff --git a/docmodel/source/color/ComplexColorJSON.cxx b/docmodel/source/color/ComplexColorJSON.cxx
deleted file mode 100644
index 4ff997ff2505..000000000000
--- a/docmodel/source/color/ComplexColorJSON.cxx
+++ /dev/null
@@ -1,105 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- */
-
-#include <docmodel/color/ComplexColorJSON.hxx>
-#include <boost/property_tree/json_parser.hpp>
-#include <sstream>
-#include <utility>
-#include <tools/json_writer.hxx>
-
-namespace model::color
-{
-bool convertFromJSON(OString const& rJsonString, model::ComplexColor& rComplexColor)
-{
-    model::ComplexColor aComplexColor;
-
-    try
-    {
-        std::stringstream aStream((std::string(rJsonString)));
-        boost::property_tree::ptree aRootTree;
-        boost::property_tree::read_json(aStream, aRootTree);
-
-        sal_Int32 nThemeType = aRootTree.get<sal_Int32>("ThemeIndex", -1);
-        aComplexColor.setThemeColor(model::convertToThemeColorType(nThemeType));
-        boost::property_tree::ptree aTransformTree = aRootTree.get_child("Transformations");
-        for (const auto& rEachTransformationNode :
-             boost::make_iterator_range(aTransformTree.equal_range("")))
-        {
-            auto const& rTransformationTree = rEachTransformationNode.second;
-            std::string sType = rTransformationTree.get<std::string>("Type", "");
-            sal_Int16 nValue = rTransformationTree.get<sal_Int16>("Value", 0);
-
-            auto eType = model::TransformationType::Undefined;
-            if (sType == "LumOff")
-                eType = model::TransformationType::LumOff;
-            else if (sType == "LumMod")
-                eType = model::TransformationType::LumMod;
-            else if (sType == "Tint")
-                eType = model::TransformationType::Tint;
-            else if (sType == "Shade")
-                eType = model::TransformationType::Shade;
-
-            if (eType != model::TransformationType::Undefined)
-                aComplexColor.addTransformation({ eType, nValue });
-        }
-    }
-    catch (const boost::property_tree::json_parser_error& /*exception*/)
-    {
-        return false;
-    }
-
-    rComplexColor = std::move(aComplexColor);
-    return true;
-}
-
-void convertToJSONTree(tools::JsonWriter& rTree, model::ComplexColor const& rComplexColor)
-{
-    rTree.put("ThemeIndex", sal_Int16(rComplexColor.getThemeColorType()));
-    auto aTransformationsList = rTree.startArray("Transformations");
-
-    for (auto const& rTransformation : rComplexColor.getTransformations())
-    {
-        std::string aType;
-        switch (rTransformation.meType)
-        {
-            case model::TransformationType::LumMod:
-                aType = "LumMod";
-                break;
-            case model::TransformationType::LumOff:
-                aType = "LumOff";
-                break;
-            case model::TransformationType::Tint:
-                aType = "Tint";
-                break;
-            case model::TransformationType::Shade:
-                aType = "Shade";
-                break;
-            default:
-                break;
-        }
-        if (!aType.empty())
-        {
-            auto aChild = rTree.startStruct();
-            rTree.put("Type", aType);
-            rTree.put("Value", rTransformation.mnValue);
-        }
-    }
-}
-
-OString convertToJSON(model::ComplexColor const& rComplexColor)
-{
-    tools::JsonWriter aTree;
-    convertToJSONTree(aTree, rComplexColor);
-    return aTree.finishAndGetAsOString();
-}
-
-} // end model::theme
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/docmodel/source/uno/UnoComplexColor.cxx b/docmodel/source/uno/UnoComplexColor.cxx
index c5533009a7e0..65e30eed78c0 100644
--- a/docmodel/source/uno/UnoComplexColor.cxx
+++ b/docmodel/source/uno/UnoComplexColor.cxx
@@ -9,7 +9,6 @@
  */
 
 #include <docmodel/uno/UnoComplexColor.hxx>
-#include <docmodel/color/ComplexColorJSON.hxx>
 
 using namespace css;
 
@@ -17,11 +16,6 @@ sal_Int32 UnoComplexColor::getType() { return sal_Int32(maColor.getType()); }
 
 sal_Int32 UnoComplexColor::getThemeColorType() { return sal_Int32(maColor.getThemeColorType()); }
 
-OUString UnoComplexColor::getRepresentation()
-{
-    return OStringToOUString(model::color::convertToJSON(maColor), RTL_TEXTENCODING_UTF8);
-}
-
 util::Color UnoComplexColor::resolveColor(uno::Reference<util::XTheme> const& /*xTheme*/)
 {
     return util::Color(maColor.getFinalColor());
diff --git a/editeng/source/items/textitem.cxx b/editeng/source/items/textitem.cxx
index 1a6fc66c116f..5b351d551d5a 100644
--- a/editeng/source/items/textitem.cxx
+++ b/editeng/source/items/textitem.cxx
@@ -84,7 +84,6 @@
 #include <editeng/eerdll.hxx>
 #include <editeng/fontvariationsitem.hxx>
 #include <editeng/opticalsizingitem.hxx>
-#include <docmodel/color/ComplexColorJSON.hxx>
 #include <docmodel/uno/UnoComplexColor.hxx>
 #include <docmodel/color/ComplexColor.hxx>
 #include <libxml/xmlwriter.h>
@@ -1640,11 +1639,6 @@ bool SvxColorItem::QueryValue( uno::Any& rVal, sal_uInt8 nMemberId ) const
             rVal <<= nValue;
             break;
         }
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            rVal <<= OStringToOUString(model::color::convertToJSON(maComplexColor), RTL_TEXTENCODING_UTF8);
-            break;
-        }
         case MID_COMPLEX_COLOR:
         {
             auto xComplexColor = model::color::createXComplexColor(maComplexColor);
@@ -1727,20 +1721,6 @@ bool SvxColorItem::PutValue( const uno::Any& rVal, sal_uInt8 nMemberId )
             maComplexColor.addTransformation({model::TransformationType::LumOff, nLumOff});
         }
         break;
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            OUString sComplexColorJson;
-            if (!(rVal >>= sComplexColorJson))
-                return false;
-
-            if (sComplexColorJson.isEmpty())
-                return false;
-
-            OString aJSON = OUStringToOString(sComplexColorJson, RTL_TEXTENCODING_ASCII_US);
-            if (!model::color::convertFromJSON(aJSON, maComplexColor))
-                return false;
-        }
-        break;
         case MID_COMPLEX_COLOR:
         {
             css::uno::Reference<css::util::XComplexColor> xComplexColor;
diff --git a/include/docmodel/color/ComplexColorJSON.hxx b/include/docmodel/color/ComplexColorJSON.hxx
deleted file mode 100644
index b35d938f007c..000000000000
--- a/include/docmodel/color/ComplexColorJSON.hxx
+++ /dev/null
@@ -1,31 +0,0 @@
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * This file is part of the LibreOffice project.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- *
- */
-
-#pragma once
-
-#include <docmodel/dllapi.h>
-#include <docmodel/color/ComplexColor.hxx>
-
-namespace tools
-{
-class JsonWriter;
-}
-
-namespace model::color
-{
-DOCMODEL_DLLPUBLIC OString convertToJSON(model::ComplexColor const& rComplexColor);
-DOCMODEL_DLLPUBLIC void convertToJSONTree(tools::JsonWriter& rTree,
-                                          model::ComplexColor const& rComplexColor);
-DOCMODEL_DLLPUBLIC bool convertFromJSON(OString const& rJsonString,
-                                        model::ComplexColor& rComplexColor);
-
-} // end of namespace model
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/docmodel/uno/UnoComplexColor.hxx b/include/docmodel/uno/UnoComplexColor.hxx
index 500c1c125a3f..4c584b2ab7c4 100644
--- a/include/docmodel/uno/UnoComplexColor.hxx
+++ b/include/docmodel/uno/UnoComplexColor.hxx
@@ -35,7 +35,6 @@ public:
     // XComplexColor
     sal_Int32 SAL_CALL getType() override;
     sal_Int32 SAL_CALL getThemeColorType() override;
-    OUString SAL_CALL getRepresentation() override;
     css::util::Color SAL_CALL
     resolveColor(css::uno::Reference<css::util::XTheme> const& xTheme) override;
 };
diff --git a/include/editeng/memberids.h b/include/editeng/memberids.h
index 19ea071076a7..8f55ec0d12db 100644
--- a/include/editeng/memberids.h
+++ b/include/editeng/memberids.h
@@ -218,8 +218,7 @@
 #define MID_COLOR_TINT_OR_SHADE 5
 #define MID_COLOR_LUM_MOD       6
 #define MID_COLOR_LUM_OFF       7
-#define MID_COMPLEX_COLOR_JSON  8
-#define MID_COMPLEX_COLOR       9
+#define MID_COMPLEX_COLOR       8
 
 // SvxRubyItem and SwFormatRuby
 #define MID_RUBY_TEXT           0
diff --git a/include/svx/theme/ThemeColorPaletteManager.hxx b/include/svx/theme/ThemeColorPaletteManager.hxx
index a2d45c19f492..98765acd2a8c 100644
--- a/include/svx/theme/ThemeColorPaletteManager.hxx
+++ b/include/svx/theme/ThemeColorPaletteManager.hxx
@@ -65,7 +65,6 @@ class UNLESS_MERGELIBS(SVXCORE_DLLPUBLIC) ThemeColorPaletteManager final
 public:
     ThemeColorPaletteManager(std::shared_ptr<model::ColorSet> const& pColorSet);
     ThemePaletteCollection generate();
-    void generateJSON(tools::JsonWriter& aTree);
 };
 
 } // end svx namespace
diff --git a/offapi/com/sun/star/util/XComplexColor.idl b/offapi/com/sun/star/util/XComplexColor.idl
index 83c5b5b1f081..c2f10e92b124 100644
--- a/offapi/com/sun/star/util/XComplexColor.idl
+++ b/offapi/com/sun/star/util/XComplexColor.idl
@@ -25,12 +25,6 @@ interface XComplexColor
 
     /** resolve the color */
     Color resolveColor([in] com::sun::star::util::XTheme xTheme);
-
-    /** String representation of the complex color.
-
-        @since LibreOffice 26.2
-    */
-    string getRepresentation();
 };
 
 }; }; }; };
diff --git a/sd/qa/unit/uiimpress.cxx b/sd/qa/unit/uiimpress.cxx
index 18a80fe5882f..874cdca38e35 100644
--- a/sd/qa/unit/uiimpress.cxx
+++ b/sd/qa/unit/uiimpress.cxx
@@ -57,7 +57,6 @@
 #include <comphelper/sequenceashashmap.hxx>
 #include <docmodel/uno/UnoTheme.hxx>
 #include <docmodel/theme/Theme.hxx>
-#include <docmodel/color/ComplexColorJSON.hxx>
 
 #include <drawdoc.hxx>
 #include <DrawDocShell.hxx>
@@ -2028,14 +2027,13 @@ CPPUNIT_TEST_FIXTURE(SdUiImpressTest, testCharColorTheme)
         aComplexColor.addTransformation({ model::TransformationType::LumMod, 2000 });
         aComplexColor.addTransformation({ model::TransformationType::LumOff, 8000 });
 
-        OUString aJSON
-            = OStringToOUString(model::color::convertToJSON(aComplexColor), RTL_TEXTENCODING_UTF8);
-
         // When setting the fill color of that shape, with theme metadata & effects:
         uno::Sequence<beans::PropertyValue> aColorArgs = {
             comphelper::makePropertyValue(u"Color.Color"_ustr,
                                           sal_Int32(0xdae3f3)), // 80% light blue
-            comphelper::makePropertyValue(u"Color.ComplexColorJSON"_ustr, uno::Any(aJSON)),
+            comphelper::makePropertyValue(
+                u"Color.ComplexColor"_ustr,
+                uno::Any(model::color::createXComplexColor(aComplexColor))),
         };
         dispatchCommand(mxComponent, u".uno:Color"_ustr, aColorArgs);
     }
@@ -2085,14 +2083,12 @@ CPPUNIT_TEST_FIXTURE(SdUiImpressTest, testFillColorTheme)
         aComplexColor.addTransformation({ model::TransformationType::LumMod, 4000 });
         aComplexColor.addTransformation({ model::TransformationType::LumOff, 6000 });
 
-        OUString aJSON
-            = OStringToOUString(model::color::convertToJSON(aComplexColor), RTL_TEXTENCODING_UTF8);
-
         // When setting the fill color of that shape, with theme metadata & effects:
         uno::Sequence<beans::PropertyValue> aColorArgs = {
             comphelper::makePropertyValue(u"FillColor.Color"_ustr, sal_Int32(0xed7d31)), // orange
-            comphelper::makePropertyValue(u"FillColor.ComplexColorJSON"_ustr,
-                                          uno::Any(aJSON)), // accent 1
+            comphelper::makePropertyValue(
+                u"FillColor.ComplexColor"_ustr,
+                uno::Any(model::color::createXComplexColor(aComplexColor))), // accent 1
         };
         dispatchCommand(mxComponent, u".uno:FillColor"_ustr, aColorArgs);
     }
diff --git a/svx/sdi/svxitems.sdi b/svx/sdi/svxitems.sdi
index bb083d49b161..95b254cb56dc 100644
--- a/svx/sdi/svxitems.sdi
+++ b/svx/sdi/svxitems.sdi
@@ -181,7 +181,7 @@ item BOOL                   SvxAutoKernItem;
 struct SvxColor
 {
     INT32  Color            MID_COLOR_RGB;
-    String ComplexColorJSON MID_COMPLEX_COLOR_JSON;
+    String ComplexColor     MID_COMPLEX_COLOR;
 };
 item SvxColor SvxColorItem;
 
@@ -225,7 +225,7 @@ item String                 avmedia_MediaItem;
 struct XColor
 {
     INT32  Color            MID_COLOR_RGB;
-    String ComplexColorJSON MID_COMPLEX_COLOR_JSON;
+    String ComplexColor     MID_COMPLEX_COLOR;
 };
 item XColor XColorItem;
 
diff --git a/svx/sdi/xoitems.sdi b/svx/sdi/xoitems.sdi
index 50db129a6434..3d8def73aebb 100644
--- a/svx/sdi/xoitems.sdi
+++ b/svx/sdi/xoitems.sdi
@@ -27,7 +27,7 @@ item XFillBitmap XFillBitmapItem;
 struct XFillColor
 {
     INT32 Color MID_COLOR_RGB;
-    String ComplexColorJSON MID_COMPLEX_COLOR_JSON;
+    String ComplexColor MID_COMPLEX_COLOR;
 };
 
 item XFillColor XFillColorItem; // XColorItem
@@ -93,7 +93,7 @@ item SvxFillStyle XFillStyleItem;
 struct XLineColor
 {
     INT32  Color MID_COLOR_RGB;
-    String ComplexColorJSON MID_COMPLEX_COLOR_JSON;
+    String ComplexColor MID_COMPLEX_COLOR;
 };
 
 item XLineColor XLineColorItem;
diff --git a/svx/source/tbxctrls/PaletteManager.cxx b/svx/source/tbxctrls/PaletteManager.cxx
index 9938bab2ef41..96386170b0c7 100644
--- a/svx/source/tbxctrls/PaletteManager.cxx
+++ b/svx/source/tbxctrls/PaletteManager.cxx
@@ -41,7 +41,7 @@
 #include <com/sun/star/util/XURLTransformer.hpp>
 #include <com/sun/star/util/URLTransformer.hpp>
 #include <docmodel/color/ComplexColor.hxx>
-#include <docmodel/color/ComplexColorJSON.hxx>
+#include <docmodel/uno/UnoComplexColor.hxx>
 
 #include <palettes.hxx>
 
@@ -445,9 +445,9 @@ void PaletteManager::DispatchColorCommand(const OUString& aCommand, const NamedC
             aComplexColor.addTransformation({model::TransformationType::LumOff, rColor.m_nLumOff});
 
         uno::Any aAny;
-        aAny <<= OStringToOUString(model::color::convertToJSON(aComplexColor), RTL_TEXTENCODING_UTF8);
+        aAny <<= model::color::createXComplexColor(aComplexColor);
 
-        aArgs.push_back(comphelper::makePropertyValue(aObj.GetURLPath() + ".ComplexColorJSON", aAny));
+        aArgs.push_back(comphelper::makePropertyValue(aObj.GetURLPath() + ".ComplexColor", aAny));
     }
 
     URL aTargetURL;
diff --git a/svx/source/theme/ThemeColorChangerCommon.cxx b/svx/source/theme/ThemeColorChangerCommon.cxx
index 94a37908e36b..948085093382 100644
--- a/svx/source/theme/ThemeColorChangerCommon.cxx
+++ b/svx/source/theme/ThemeColorChangerCommon.cxx
@@ -171,16 +171,13 @@ void updateSdrObject(model::ColorSet const& rColorSet, SdrObject* pObject, SdrVi
         updateEditEngTextSections(rColorSet, pObject, *pView);
 }
 
-void notifyLOK(std::shared_ptr<model::ColorSet> const& pColorSet,
+void notifyLOK(std::shared_ptr<model::ColorSet> const& /*pColorSet*/,
                const std::set<Color>& rDocumentColors)
 {
     if (comphelper::LibreOfficeKit::isActive())
     {
-        svx::ThemeColorPaletteManager aManager(pColorSet);
         tools::JsonWriter aTree;
 
-        if (pColorSet)
-            aManager.generateJSON(aTree);
         if (rDocumentColors.size())
             PaletteManager::generateJSON(aTree, rDocumentColors);
 
diff --git a/svx/source/theme/ThemeColorPaletteManager.cxx b/svx/source/theme/ThemeColorPaletteManager.cxx
index 21c65024be35..7a5ccb8ed260 100644
--- a/svx/source/theme/ThemeColorPaletteManager.cxx
+++ b/svx/source/theme/ThemeColorPaletteManager.cxx
@@ -14,7 +14,6 @@
 #include <svx/dialmgr.hxx>
 #include <svx/strings.hrc>
 #include <docmodel/theme/ColorSet.hxx>
-#include <docmodel/color/ComplexColorJSON.hxx>
 #include <tools/json_writer.hxx>
 
 #include <array>
@@ -92,38 +91,6 @@ svx::ThemePaletteCollection ThemeColorPaletteManager::generate()
     }
     return aThemePaletteCollection;
 }
-
-void ThemeColorPaletteManager::generateJSON(tools::JsonWriter& aTree)
-{
-    svx::ThemePaletteCollection aThemePaletteCollection = generate();
-
-    auto aColorListTree = aTree.startArray("ThemeColors");
-
-    for (size_t nEffect = 0; nEffect < 6; ++nEffect)
-    {
-        auto aColorRowTree = aTree.startAnonArray();
-        for (size_t nIndex = 0; nIndex < 12; ++nIndex)
-        {
-            auto aColorTree = aTree.startStruct();
-
-            auto const& rColorData = aThemePaletteCollection.maColors[nIndex];
-            auto const& rEffectData = rColorData.maEffects[nEffect];
-
-            aTree.put("Value", rEffectData.maColor.AsRGBHexString().toUtf8());
-            aTree.put("Name", rEffectData.maColorName.toUtf8());
-
-            model::ComplexColor aComplexColor;
-            aComplexColor.setThemeColor(rColorData.meThemeColorType);
-            aComplexColor.addTransformation(
-                { model::TransformationType::LumMod, rEffectData.mnLumMod });
-            aComplexColor.addTransformation(
-                { model::TransformationType::LumOff, rEffectData.mnLumOff });
-            auto aDataTree = aTree.startNode("Data");
-            model::color::convertToJSONTree(aTree, aComplexColor);
-        }
-    }
-}
-
 } // end svx namespace
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/svx/source/xoutdev/xattr.cxx b/svx/source/xoutdev/xattr.cxx
index aaf154bb5f8a..1db6655b5bcc 100644
--- a/svx/source/xoutdev/xattr.cxx
+++ b/svx/source/xoutdev/xattr.cxx
@@ -38,7 +38,6 @@
 #include <editeng/memberids.h>
 #include <docmodel/uno/UnoGradientTools.hxx>
 #include <docmodel/uno/UnoComplexColor.hxx>
-#include <docmodel/color/ComplexColorJSON.hxx>
 #include <tools/mapunit.hxx>
 #include <tools/UnitConversion.hxx>
 #include <osl/diagnose.h>
@@ -343,11 +342,6 @@ bool XColorItem::QueryValue( css::uno::Any& rVal, sal_uInt8 nMemberId) const
             rVal <<= xComplexColor;
             break;
         }
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            rVal <<= OStringToOUString(model::color::convertToJSON(getComplexColor()), RTL_TEXTENCODING_UTF8);
-            break;
-        }
         default:
         {
             rVal <<= GetColorValue().GetRGBColor();
@@ -370,21 +364,6 @@ bool XColorItem::PutValue( const css::uno::Any& rVal, sal_uInt8 nMemberId)
             setComplexColor(model::color::getFromXComplexColor(xComplexColor));
         }
         break;
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            OUString sComplexColorJson;
-            if (!(rVal >>= sComplexColorJson))
-                return false;
-
-            if (sComplexColorJson.isEmpty())
-                return false;
-
-            OString aJSON = OUStringToOString(sComplexColorJson, RTL_TEXTENCODING_ASCII_US);
-            model::ComplexColor aComplexColor;
-            model::color::convertFromJSON(aJSON, aComplexColor);
-            setComplexColor(aComplexColor);
-        }
-        break;
         default:
         {
             Color nValue;
@@ -1067,11 +1046,6 @@ bool XLineColorItem::QueryValue( css::uno::Any& rVal, sal_uInt8 nMemberId) const
             rVal <<= xComplexColor;
             break;
         }
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            rVal <<= OStringToOUString(model::color::convertToJSON(getComplexColor()), RTL_TEXTENCODING_UTF8);
-            break;
-        }
         default:
         {
             rVal <<= GetColorValue().GetRGBColor();
@@ -1094,20 +1068,6 @@ bool XLineColorItem::PutValue( const css::uno::Any& rVal, sal_uInt8 nMemberId)
             setComplexColor(model::color::getFromXComplexColor(xComplexColor));
         }
         break;
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            OUString sComplexColorJson;
-            if (!(rVal >>= sComplexColorJson))
-                return false;
-
-            if (sComplexColorJson.isEmpty())
-                return false;
-            model::ComplexColor aComplexColor;
-            OString aJSON = OUStringToOString(sComplexColorJson, RTL_TEXTENCODING_ASCII_US);
-            model::color::convertFromJSON(aJSON, aComplexColor);
-            setComplexColor(aComplexColor);
-        }
-        break;
         default:
         {
             sal_Int32 nValue;
@@ -1891,11 +1851,6 @@ bool XFillColorItem::QueryValue( css::uno::Any& rVal, sal_uInt8 nMemberId ) cons
             rVal <<= xComplexColor;
             break;
         }
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            rVal <<= OStringToOUString(model::color::convertToJSON(getComplexColor()), RTL_TEXTENCODING_UTF8);
-            break;
-        }
         default:
         {
             rVal <<= GetColorValue().GetRGBColor();
@@ -1945,21 +1900,6 @@ bool XFillColorItem::PutValue( const css::uno::Any& rVal, sal_uInt8 nMemberId )
             setComplexColor(model::color::getFromXComplexColor(xComplexColor));
         }
         break;
-        case MID_COMPLEX_COLOR_JSON:
-        {
-            OUString sComplexColorJson;
-            if (!(rVal >>= sComplexColorJson))
-                return false;
-
-            if (sComplexColorJson.isEmpty())
-                return false;
-
-            OString aJSON = OUStringToOString(sComplexColorJson, RTL_TEXTENCODING_ASCII_US);
-            model::ComplexColor aComplexColor;
-            model::color::convertFromJSON(aJSON, aComplexColor);
-            setComplexColor(aComplexColor);
-        }
-        break;
         default:
         {
             Color nValue;