diff --git a/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt b/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt
index 7b32b9d1d623..0a9c3f2e4bd5 100644
--- a/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt
+++ b/platform/xdebugger-impl/backend/src/com/intellij/platform/debugger/impl/backend/BackendXDebuggerValueMarkupApi.kt
@@ -1,6 +1,7 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.platform.debugger.impl.backend
 
+import com.intellij.ide.ui.colors.color
 import com.intellij.platform.debugger.impl.rpc.XDebuggerValueMarkupApi
 import com.intellij.platform.debugger.impl.rpc.XValueMarkerDto
 import com.intellij.ui.JBColor
@@ -20,7 +21,7 @@ internal class BackendXDebuggerValueMarkupApi : XDebuggerValueMarkupApi {
     val session = xValueModel.session
     val markers = session.getValueMarkers() ?: return
 
-    val markup = ValueMarkup(markerDto.text, markerDto.color ?: JBColor.RED, markerDto.tooltipText)
+    val markup = ValueMarkup(markerDto.text, markerDto.colorId?.color() ?: JBColor.RED, markerDto.tooltipText)
     markers.markValue(xValueModel.xValue, markup).await()
     updateMarkersForAllXValueModels(markers, session)
   }
diff --git a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt
index 55592bd30fe6..8adf3109876d 100644
--- a/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt
+++ b/platform/xdebugger-impl/frontend/src/com/intellij/platform/debugger/impl/frontend/FrontendXValueMarkers.kt
@@ -1,13 +1,14 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.platform.debugger.impl.frontend
 
+import com.intellij.ide.ui.colors.color
+import com.intellij.ide.ui.colors.rpcId
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.components.service
 import com.intellij.openapi.project.Project
 import com.intellij.platform.debugger.impl.frontend.evaluate.quick.FrontendXValue
 import com.intellij.platform.debugger.impl.rpc.XDebuggerValueMarkupApi
 import com.intellij.platform.debugger.impl.rpc.XValueMarkerDto
-import com.intellij.ui.JBColor
 import com.intellij.xdebugger.frame.XValue
 import com.intellij.xdebugger.impl.frame.XDebugManagerProxy
 import com.intellij.xdebugger.impl.frame.XDebugSessionProxy
@@ -23,8 +24,7 @@ import org.jetbrains.concurrency.asPromise
 internal class FrontendXValueMarkers<V : XValue, M>(private val project: Project) : XValueMarkers<V, M>() {
   override fun getMarkup(value: XValue): ValueMarkup? {
     val markerDto = FrontendXValue.asFrontendXValueOrNull(value)?.markerDto ?: return null
-    // TODO[IJPL-160146]: Implement implement Color serialization
-    return ValueMarkup(markerDto.text, markerDto.color ?: JBColor.RED, markerDto.tooltipText)
+    return ValueMarkup(markerDto.text, markerDto.colorId?.color(), markerDto.tooltipText)
   }
 
   override fun canMarkValue(value: XValue): Boolean {
@@ -54,7 +54,7 @@ internal class FrontendXValueMarkers<V : XValue, M>(private val project: Project
 private class FrontendXValueMarkersService(project: Project, private val cs: CoroutineScope) {
   fun markValue(value: XValue, markup: ValueMarkup): Promise<Any> {
     val valueMarked = cs.async {
-      val marker = XValueMarkerDto(markup.text, markup.color, markup.toolTipText)
+      val marker = XValueMarkerDto(markup.text, markup.color.rpcId(), markup.toolTipText)
       XDebuggerValueMarkupApi.getInstance().markValue(FrontendXValue.asFrontendXValue(value).xValueDto.id, marker)
       marker as Any
     }
diff --git a/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XValueMarkerDto.kt b/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XValueMarkerDto.kt
index 705e674e8949..aad28ba9780f 100644
--- a/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XValueMarkerDto.kt
+++ b/platform/xdebugger-impl/rpc/src/com/intellij/platform/debugger/impl/rpc/XValueMarkerDto.kt
@@ -1,10 +1,10 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.platform.debugger.impl.rpc
 
+import com.intellij.ide.ui.colors.ColorId
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.Transient
-import java.awt.Color
+import org.jetbrains.annotations.ApiStatus
 
-// TODO[IJPL-160146]: Implement implement Color serialization
+@ApiStatus.Internal
 @Serializable
-data class XValueMarkerDto(val text: String, @Transient val color: Color? = null, val tooltipText: String?)
\ No newline at end of file
+data class XValueMarkerDto(val text: String, val colorId: ColorId?, val tooltipText: String?)
\ No newline at end of file
diff --git a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/actions/handlers/XMarkObjectActionHandler.kt b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/actions/handlers/XMarkObjectActionHandler.kt
index e414ee463d5d..c357eaa1e988 100644
--- a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/actions/handlers/XMarkObjectActionHandler.kt
+++ b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/actions/handlers/XMarkObjectActionHandler.kt
@@ -1,6 +1,7 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.xdebugger.impl.actions.handlers
 
+import com.intellij.ide.ui.colors.rpcId
 import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.actionSystem.PlatformCoreDataKeys
 import com.intellij.openapi.application.EDT
@@ -97,7 +98,7 @@ private suspend fun performMarkObject(
       return false
     }
     XDebugManagerProxy.getInstance().withId(value, proxy) { xValueId ->
-      val marker = XValueMarkerDto(markup.text, markup.color, markup.toolTipText)
+      val marker = XValueMarkerDto(markup.text, markup.color.rpcId(), markup.toolTipText)
       XDebuggerValueMarkupApi.getInstance().markValue(xValueId, marker)
     }
   }
diff --git a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt
index a042704b4d91..bc417246bc65 100644
--- a/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt
+++ b/platform/xdebugger-impl/src/com/intellij/xdebugger/impl/rpc/models/BackendXValueModel.kt
@@ -1,6 +1,7 @@
 // Copyright 2000-2025 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.xdebugger.impl.rpc.models
 
+import com.intellij.ide.ui.colors.rpcId
 import com.intellij.ide.ui.icons.rpcId
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.components.service
@@ -15,6 +16,7 @@ import com.intellij.platform.kernel.ids.BackendValueIdType
 import com.intellij.platform.kernel.ids.deleteValueById
 import com.intellij.platform.kernel.ids.findValueById
 import com.intellij.platform.kernel.ids.storeValueGlobally
+import com.intellij.ui.JBColor
 import com.intellij.util.AwaitCancellationAndInvoke
 import com.intellij.util.awaitCancellationAndInvoke
 import com.intellij.xdebugger.frame.XFullValueEvaluator
@@ -107,7 +109,7 @@ class BackendXValueModel internal constructor(
       _marker.value = null
       return
     }
-    _marker.update { XValueMarkerDto(marker.text, marker.color, marker.toolTipText) }
+    _marker.update { XValueMarkerDto(marker.text, (marker.color ?: JBColor.RED).rpcId(), marker.toolTipText) }
   }
 
   @ApiStatus.Internal