diff --git a/frontend/src/design-system/tokens.css b/frontend/src/design-system/tokens.css
index e7dbe01f..4b28144d 100644
--- a/frontend/src/design-system/tokens.css
+++ b/frontend/src/design-system/tokens.css
@@ -244,10 +244,20 @@
 .ag-row-even {
   background-color: #ffffff !important;
 }
-.ag-row-selected {
-  background-color: #dbeafe !important;
-  color: #1e3a8a !important;
-  font-weight: 600 !important;
+.ag-row-selected,
+.ag-row-selected .ag-cell,
+.ag-row-selected .ag-cell-value {
+  background-color: #eff6ff !important; /* Soft Soft Tint Blue #eff6ff */
+  color: #0f172a !important; /* Ultra-High Contrast Dark Text #0f172a */
+  font-weight: 700 !important;
+}
+
+[data-theme='dark'] .ag-row-selected,
+[data-theme='dark'] .ag-row-selected .ag-cell,
+[data-theme='dark'] .ag-row-selected .ag-cell-value {
+  background-color: #1e3a8a !important;
+  color: #ffffff !important;
+  font-weight: 700 !important;
 }
 
 /* Raw Table Standard Grid Class for legacy fallback tables */