diff --git a/extensions/theme-abyss/themes/abyss-color-theme.json b/extensions/theme-abyss/themes/abyss-color-theme.json
index 85f1403140712778fbf4009f0f8236181414232d..a3c892a04034c5234d443de4c74f7c77601f790e 100644
--- a/extensions/theme-abyss/themes/abyss-color-theme.json
+++ b/extensions/theme-abyss/themes/abyss-color-theme.json
@@ -369,7 +369,7 @@
 		// "activityBarForeground": "",
 		"activityBarBadgeBackground": "#0063a5",
 		// "activityBarBadgeForeground": "",
-		"activityBarDragAndDropBackground": "#25375daa",
+		// "activityBarDragAndDropBackground": "#25375daa",
 
 		// Workbench: Panel
 		// "panelBackground": "",
diff --git a/extensions/theme-solarized-dark/themes/solarized-dark-color-theme.json b/extensions/theme-solarized-dark/themes/solarized-dark-color-theme.json
index 63a31ddf13cd818d7f4f13d96d1307b3093cb812..0b321812e0c0689d67b6666a6714d1b1ab43445b 100644
--- a/extensions/theme-solarized-dark/themes/solarized-dark-color-theme.json
+++ b/extensions/theme-solarized-dark/themes/solarized-dark-color-theme.json
@@ -404,7 +404,7 @@
 
 		// Workbench: Activity Bar
 		"activityBarBackground": "#003847",
-		"activityBarDragAndDropBackground": "#00212B",
+		// "activityBarDragAndDropBackground": "#00212B",
 		"activityBarBadgeBackground": "#047aa6",
 
 		// Workbench: Panel
diff --git a/src/vs/workbench/common/theme.ts b/src/vs/workbench/common/theme.ts
index 1eefe98d8ff3c675c44415131794e0c7d2c88302..53c4747a8f6d1ac1069c14d25764002e6cfe8e87 100644
--- a/src/vs/workbench/common/theme.ts
+++ b/src/vs/workbench/common/theme.ts
@@ -121,8 +121,8 @@ export const PANEL_INACTIVE_TITLE_COLOR = registerColor('panelInactiveTitleForeg
 }, nls.localize('panelInactiveTitleForeground', "Title color for the inactive panel. Panels are shown below the editor area and contain views like output and integrated terminal."));
 
 export const PANEL_ACTIVE_TITLE_BORDER = registerColor('panelActiveTitleBorder', {
-	dark: '#404047',
-	light: '#CCCEDA',
+	dark: PANEL_BORDER_COLOR,
+	light: PANEL_BORDER_COLOR,
 	hc: contrastBorder
 }, nls.localize('panelActiveTitleBorder', "Border color for the active panel title. Panels are shown below the editor area and contain views like output and integrated terminal."));
 
@@ -189,9 +189,9 @@ export const ACTIVITY_BAR_FOREGROUND = registerColor('activityBarForeground', {
 }, nls.localize('activityBarForeground', "Activity bar foreground color (e.g. used for the icons). The activity bar is showing on the far left or right and allows to switch between views of the side bar."));
 
 export const ACTIVITY_BAR_DRAG_AND_DROP_BACKGROUND = registerColor('activityBarDragAndDropBackground', {
-	dark: '#403F3F',
-	light: '#403F3F',
-	hc: '#403F3F'
+	dark: Color.fromRGBA(new RGBA(255, 255, 255)).transparent(0.12),
+	light: Color.fromRGBA(new RGBA(255, 255, 255)).transparent(0.12),
+	hc: Color.fromRGBA(new RGBA(255, 255, 255)).transparent(0.12),
 }, nls.localize('activityBarDragAndDropBackground', "Drag and drop feedback color for the activity bar items. The activity bar is showing on the far left or right and allows to switch between views of the side bar."));
 
 export const ACTIVITY_BAR_BADGE_BACKGROUND = registerColor('activityBarBadgeBackground', {