diff --git a/packages/eui-theme-borealis/src/variables/colors/_semantic_colors.ts b/packages/eui-theme-borealis/src/variables/colors/_semantic_colors.ts
index d3cb39e0116..d340a5e0229 100644
--- a/packages/eui-theme-borealis/src/variables/colors/_semantic_colors.ts
+++ b/packages/eui-theme-borealis/src/variables/colors/_semantic_colors.ts
@@ -10,7 +10,7 @@ import { PRIMITIVE_COLORS } from './_primitive_colors';
 
 export const SEMANTIC_COLORS = {
   plainLight: PRIMITIVE_COLORS.white,
-  plainDark: PRIMITIVE_COLORS.mutedBlack,
+  plainDark: PRIMITIVE_COLORS.blueBlack,
 
   primary10: PRIMITIVE_COLORS.blue['10'],
   primary20: PRIMITIVE_COLORS.blue['20'],
@@ -117,32 +117,32 @@ export const SEMANTIC_COLORS = {
   assistance130: PRIMITIVE_COLORS.purple['130'],
   assistance140: PRIMITIVE_COLORS.purple['140'],
 
-  shade10: PRIMITIVE_COLORS.mutedGrey['10'],
-  shade15: PRIMITIVE_COLORS.mutedGrey['15'],
-  shade20: PRIMITIVE_COLORS.mutedGrey['20'],
-  shade25: PRIMITIVE_COLORS.mutedGrey['25'],
-  shade30: PRIMITIVE_COLORS.mutedGrey['30'],
-  shade35: PRIMITIVE_COLORS.mutedGrey['35'],
-  shade40: PRIMITIVE_COLORS.mutedGrey['40'],
-  shade45: PRIMITIVE_COLORS.mutedGrey['45'],
-  shade50: PRIMITIVE_COLORS.mutedGrey['50'],
-  shade55: PRIMITIVE_COLORS.mutedGrey['55'],
-  shade60: PRIMITIVE_COLORS.mutedGrey['60'],
-  shade65: PRIMITIVE_COLORS.mutedGrey['65'],
-  shade70: PRIMITIVE_COLORS.mutedGrey['70'],
-  shade75: PRIMITIVE_COLORS.mutedGrey['75'],
-  shade80: PRIMITIVE_COLORS.mutedGrey['80'],
-  shade85: PRIMITIVE_COLORS.mutedGrey['85'],
-  shade90: PRIMITIVE_COLORS.mutedGrey['90'],
-  shade95: PRIMITIVE_COLORS.mutedGrey['95'],
-  shade100: PRIMITIVE_COLORS.mutedGrey['100'],
-  shade105: PRIMITIVE_COLORS.mutedGrey['105'],
-  shade110: PRIMITIVE_COLORS.mutedGrey['110'],
-  shade115: PRIMITIVE_COLORS.mutedGrey['115'],
-  shade120: PRIMITIVE_COLORS.mutedGrey['120'],
-  shade125: PRIMITIVE_COLORS.mutedGrey['125'],
-  shade130: PRIMITIVE_COLORS.mutedGrey['130'],
-  shade135: PRIMITIVE_COLORS.mutedGrey['135'],
-  shade140: PRIMITIVE_COLORS.mutedGrey['140'],
-  shade145: PRIMITIVE_COLORS.mutedGrey['145'],
+  shade10: PRIMITIVE_COLORS.blueGrey['10'],
+  shade15: PRIMITIVE_COLORS.blueGrey['15'],
+  shade20: PRIMITIVE_COLORS.blueGrey['20'],
+  shade25: PRIMITIVE_COLORS.blueGrey['25'],
+  shade30: PRIMITIVE_COLORS.blueGrey['30'],
+  shade35: PRIMITIVE_COLORS.blueGrey['35'],
+  shade40: PRIMITIVE_COLORS.blueGrey['40'],
+  shade45: PRIMITIVE_COLORS.blueGrey['45'],
+  shade50: PRIMITIVE_COLORS.blueGrey['50'],
+  shade55: PRIMITIVE_COLORS.blueGrey['55'],
+  shade60: PRIMITIVE_COLORS.blueGrey['60'],
+  shade65: PRIMITIVE_COLORS.blueGrey['65'],
+  shade70: PRIMITIVE_COLORS.blueGrey['70'],
+  shade75: PRIMITIVE_COLORS.blueGrey['75'],
+  shade80: PRIMITIVE_COLORS.blueGrey['80'],
+  shade85: PRIMITIVE_COLORS.blueGrey['85'],
+  shade90: PRIMITIVE_COLORS.blueGrey['90'],
+  shade95: PRIMITIVE_COLORS.blueGrey['95'],
+  shade100: PRIMITIVE_COLORS.blueGrey['100'],
+  shade105: PRIMITIVE_COLORS.blueGrey['105'],
+  shade110: PRIMITIVE_COLORS.blueGrey['110'],
+  shade115: PRIMITIVE_COLORS.blueGrey['115'],
+  shade120: PRIMITIVE_COLORS.blueGrey['120'],
+  shade125: PRIMITIVE_COLORS.blueGrey['125'],
+  shade130: PRIMITIVE_COLORS.blueGrey['130'],
+  shade135: PRIMITIVE_COLORS.blueGrey['135'],
+  shade140: PRIMITIVE_COLORS.blueGrey['140'],
+  shade145: PRIMITIVE_COLORS.blueGrey['145'],
 };