diff --git a/gui/app/styles/color.scss b/gui/app/styles/color.scss
index c87a382e..ce02be2e 100644
--- a/gui/app/styles/color.scss
+++ b/gui/app/styles/color.scss
@@ -30,6 +30,7 @@ $color-dark: #434343;
 $color-gray: #8b9096;
 $color-gray-light: #d8d8d8;
 $color-gray-light2: #eaeaea;
+$color-gray-light3: #f9f9f9;
 $color-border: #d3d3d3;
 
 // colors