--- a/browser/themes/shared/toolbarbuttons.inc.css
+++ b/browser/themes/shared/toolbarbuttons.inc.css
@@ -38,18 +38,18 @@
 :root:-moz-lwtheme-darktext,
 toolbar:not([brighttext]) {
   --toolbarbutton-hover-background: var(--lwt-toolbarbutton-hover-background, hsla(240,5%,5%,.1));
   --toolbarbutton-active-background: var(--lwt-toolbarbutton-active-background, hsla(240,5%,5%,.15));
 }
 
 :root:-moz-lwtheme-brighttext,
 toolbar[brighttext] {
-  --toolbarbutton-hover-background: var(--lwt-toolbarbutton-hover-background, hsla(0,0%,100%,.2));
-  --toolbarbutton-active-background: var(--lwt-toolbarbutton-active-background, hsla(0,0%,100%,.3));
+  --toolbarbutton-hover-background: var(--lwt-toolbarbutton-hover-background, hsla(0,0%,70%,.4));
+  --toolbarbutton-active-background: var(--lwt-toolbarbutton-active-background, hsla(0,0%,70%,.6));
 
   --backbutton-background: var(--toolbarbutton-hover-background);
   --backbutton-hover-background: var(--toolbarbutton-active-background);
   --backbutton-active-background: hsla(0,0%,100%,.4);
 }
 
 /* ::::: primary toolbar buttons ::::: */