style: update error color hex

Author: tikagan

assets/scss/theme/utilities.scss

@@ -35,7 +35,7 @@ $gray900: #212121;
 $codGray: #060606; // black
 $sageGreen: #CBDDBB; // light soft green
 $alto: #D3D3D3; // light gray
-$burntSienna: #E8655D; // red
+$burntSienna: #FD835D; // red
 $chardonnay: #FFC582; // peachy orange
 $codeBlack: #191919; // black
 $tundora: #414141; // gray