diff --git a/addons/web_editor/static/src/scss/secondary_variables.scss b/addons/web_editor/static/src/scss/secondary_variables.scss
index 33d5019ec82..421e6670aa5 100644
--- a/addons/web_editor/static/src/scss/secondary_variables.scss
+++ b/addons/web_editor/static/src/scss/secondary_variables.scss
@@ -20,7 +20,7 @@ $-combination-additions: ();
 $o-color-palette: map-get($o-color-palettes, $o-color-palette-name) or ();
 // Original color palette can contain override of the default combinations (so keep 'null' values for this merge)
 $o-color-palette: map-merge($-combination-additions, $o-color-palette);
-$o-color-palette: map-merge($o-base-color-palette, o-map-omit($o-color-palette));
+$o-color-palette: map-merge($o-base-color-palette, $o-color-palette);
 $o-color-palette: o-map-force-nulls($o-color-palette);
 
 // Theme colors
@@ -41,16 +41,16 @@ $o-theme-color-palette: map-merge((
     // very dark version of a desaturate version of the main color
     'light': lighten(desaturate($-main-color, 80%), min(70%, max(0%, 97% - $-main-color-lightness))), // Does not increase over 97% lightness
     'dark': darken(desaturate($-main-color, 80%), min(70%, max(0%, $-main-color-lightness - 10%))), // Does not lower under 10% lightness
-), o-map-omit($o-theme-color-palette));
-$o-theme-color-palette: map-merge($o-base-theme-color-palette, o-map-omit($o-theme-color-palette));
+), $o-theme-color-palette);
+$o-theme-color-palette: map-merge($o-base-theme-color-palette, $o-theme-color-palette);
 $o-theme-color-palette: o-map-force-nulls($o-theme-color-palette);
 
 // Gray colors
 // Extend grays with transparent ones (for some reason, BS4 create black-50 and
 // white-50 but does not allow overridding that with variables).
 $o-gray-color-palette: map-get($o-gray-color-palettes, $o-gray-color-palette-name) or () !default;
-$o-gray-color-palette: map-merge($o-transparent-grays, o-map-omit($o-gray-color-palette));
-$o-gray-color-palette: map-merge($o-base-gray-color-palette, o-map-omit($o-gray-color-palette));
+$o-gray-color-palette: map-merge($o-transparent-grays, $o-gray-color-palette);
+$o-gray-color-palette: map-merge($o-base-gray-color-palette, $o-gray-color-palette);
 $o-gray-color-palette: o-map-force-nulls($o-gray-color-palette);
 
 $o-color-system-initialized: false;
diff --git a/addons/website/static/src/scss/secondary_variables.scss b/addons/website/static/src/scss/secondary_variables.scss
index c0db7f2e75b..14c27077550 100644
--- a/addons/website/static/src/scss/secondary_variables.scss
+++ b/addons/website/static/src/scss/secondary_variables.scss
@@ -54,7 +54,7 @@ $o-fonts-similar: (
 // automatically replaced with corresponsing values in chosen default values
 // palette.
 $-website-values-default: o-safe-nth($o-website-values-palettes, $o-website-values-palette-number, ());
-$-website-values-default: map-merge($o-base-website-values-palette, o-map-omit($-website-values-default));
+$-website-values-default: map-merge($o-base-website-values-palette, $-website-values-default);
 $o-user-website-values: o-map-font-aliases($o-user-website-values);
 $-actual-user-website-values-palette: map-merge($-website-values-default, $o-user-website-values);
 // Default font selection + User font selection have been merged, now need to