diff --git a/UI/WebServerResources/scss/components/_palette.scss b/UI/WebServerResources/scss/components/_palette.scss
index 81b74b6cb..37be4f867 100755
--- a/UI/WebServerResources/scss/components/_palette.scss
+++ b/UI/WebServerResources/scss/components/_palette.scss
@@ -62,6 +62,8 @@ $paletteBrown: #efebe9 #d7ccc8 #bcaaa4 #a1887f #8d6e63 #795548 #6d4c41 #5d4037 #
 
 $paletteBlueGrey: #eceff1 #cfd8dc #b0bec5 #90a4ae #78909c #607d8b #546e7a #455a64 #37474f #263238;
 
+$paletteGrey: #fafafa #f5f5f5 #eeeeee #e0e0e0 #bdbdbd #9e9e9e #757575 #616161 #424242 #212121 #000000 #ffffff #eeeeee #bdbdbd #616161;
+
 /// SOGo custom theme palettes
 //  ---------------------------------------------------------------------------
 
@@ -380,6 +382,16 @@ $colorBlueGrey700:  nth($paletteBlueGrey, 8);
 $colorBlueGrey800:  nth($paletteBlueGrey, 9);
 $colorBlueGrey900:  nth($paletteBlueGrey, 10);
 
+$colorGrey50:   nth($paletteGrey, 1);
+$colorGrey100:  nth($paletteGrey, 2);
+$colorGrey200:  nth($paletteGrey, 3);
+$colorGrey300:  nth($paletteGrey, 4);
+$colorGrey400:  nth($paletteGrey, 5);
+$colorGrey500:  nth($paletteGrey, 6);
+$colorGrey600:  nth($paletteGrey, 7);
+$colorGrey700:  nth($paletteGrey, 8);
+$colorGrey800:  nth($paletteGrey, 9);
+$colorGrey900:  nth($paletteGrey, 10);
 
 /// Provides Color definitions of SOGo's palette in classes
 /// One for 'color' attribute (fg-color), and one for the