diff --git a/platform/platform-resources/src/themes/darcula.theme.json b/platform/platform-resources/src/themes/darcula.theme.json
index f5d84b3f9a74..de20d7030628 100644
--- a/platform/platform-resources/src/themes/darcula.theme.json
+++ b/platform/platform-resources/src/themes/darcula.theme.json
@@ -843,7 +843,7 @@
 
     "MainToolbar": {
       "foreground": "#BBBBBB",
-      "background": "#333C57",
+      "background": "#3c3f41",
       "fontSizeOffset.compact": -1,
       "Icon": {
         "background": "#3C3F41",
@@ -915,8 +915,8 @@
 
     "MainWindow.Tab" : {
       "selectedForeground": "#CED0D6",
-      "selectedBackground": "#545D77",
-      "selectedInactiveBackground": "#40475F",
+      "selectedBackground": "#3C3F41",
+      "selectedInactiveBackground": "#3C3F41",
       "foreground": "#B4B8BF",
       "background": "#131314",
       "hoverForeground": "#CED0D6",
diff --git a/platform/platform-resources/src/themes/expUI/expUI_dark.theme.json b/platform/platform-resources/src/themes/expUI/expUI_dark.theme.json
index 5094ac5bffdc..76513ce556af 100644
--- a/platform/platform-resources/src/themes/expUI/expUI_dark.theme.json
+++ b/platform/platform-resources/src/themes/expUI/expUI_dark.theme.json
@@ -728,7 +728,7 @@
         "maxWidth": 350,
         "transparentHoverBackground": "#FFFFFF1A"
       },
-      "background": "#333C57",
+      "background": "Gray2",
       "separatorColor": "Gray4"
     },
 
@@ -999,8 +999,8 @@
 
     "MainWindow.Tab" : {
       "selectedForeground": "Gray11",
-      "selectedBackground": "#262E43",
-      "selectedInactiveBackground": "#40475F",
+      "selectedBackground": "Gray2",
+      "selectedInactiveBackground": "Gray3",
       "foreground": "Gray10",
       "background": "#131314",
       "hoverForeground": "Gray11",
diff --git a/platform/platform-resources/src/themes/expUI/expUI_light.theme.json b/platform/platform-resources/src/themes/expUI/expUI_light.theme.json
index 7022a6147a1c..924b7fc081ae 100644
--- a/platform/platform-resources/src/themes/expUI/expUI_light.theme.json
+++ b/platform/platform-resources/src/themes/expUI/expUI_light.theme.json
@@ -731,7 +731,7 @@
     },
 
     "MainToolbar": {
-      "background": "#333C57",
+      "background": "Gray2",
       "foreground": "Gray12",
       "inactiveBackground": "Gray3",
       "separatorColor": "Gray4",
@@ -1025,8 +1025,8 @@
 
     "MainWindow.Tab" : {
       "selectedForeground": "Gray9",
-      "selectedBackground": "#333C57",
-      "selectedInactiveBackground": "#565E7B",
+      "selectedBackground": "Gray2",
+      "selectedInactiveBackground": "Gray3",
       "foreground": "Gray8",
       "background": "Gray1",
       "hoverForeground": "Gray9",
diff --git a/platform/platform-resources/src/themes/expUI/expUI_light_with_light_header.theme.json b/platform/platform-resources/src/themes/expUI/expUI_light_with_light_header.theme.json
index 87bc853ea946..056da12f041a 100644
--- a/platform/platform-resources/src/themes/expUI/expUI_light_with_light_header.theme.json
+++ b/platform/platform-resources/src/themes/expUI/expUI_light_with_light_header.theme.json
@@ -31,8 +31,8 @@
 
     "MainWindow.Tab" : {
       "selectedForeground": "Gray1",
-      "selectedBackground": "#DBDFE9",
-      "selectedInactiveBackground": "#BAC0CF",
+      "selectedBackground": "Gray13",
+      "selectedInactiveBackground": "Gray12",
       "foreground": "Gray5",
       "background": "Gray12",
       "hoverForeground": "Gray1",
@@ -42,7 +42,7 @@
     },
 
     "MainToolbar": {
-      "background": "#F2F4F8",
+      "background": "Gray13",
       "foreground": "Gray1",
       "inactiveBackground": "Gray12",
       "separatorColor": "Gray11",