Update variables.scss

Author: PrakashDurlabhji

Diff for: src/styles/_mixins/variables.scss

@@ -24,7 +24,7 @@ $tc-black: #151516;
 $tc-gray-90: #2a2a2b;
 $tc-gray-80: #404041;
 $tc-gray-70: #555;
-$tc-gray-75: #757588;
+$tc-gray-75: #006dea;
 $tc-gray-60: #6b6b6b;
 $tc-gray-50: #808080;
 $tc-gray-40: #959596;