diff --git a/basis/ui/gadgets/theme/light/light.factor b/basis/ui/gadgets/theme/light/light.factor
index 537986f3c3..e747229e0e 100644
--- a/basis/ui/gadgets/theme/light/light.factor
+++ b/basis/ui/gadgets/theme/light/light.factor
@@ -1,6 +1,6 @@
 ! Copyright (C) 2015 Nicolas Pénet.
 ! See http://factorcode.org/license.txt for BSD license.
-USING: accessors colors colors.constants ui.pens.solid ;
+USING: accessors colors colors.constants colors.hex ui.pens.solid ;
 IN: ui.gadgets.theme
 
 CONSTANT: toolbar-background COLOR: grey95
@@ -40,18 +40,13 @@ CONSTANT: popup-color COLOR: yellow2
 CONSTANT: object-color COLOR: aquamarine2
 CONSTANT: contents-color COLOR: orchid2
 
-CONSTANT: help-header-background
-T{ rgba { red 0.9568 } { green 0.9450 } { blue 0.8509 } { alpha 1.0 } } inline
+CONSTANT: help-header-background HEXCOLOR: F4EFD9
 
-CONSTANT: thread-status-stopped-background
-T{ rgba { red 0.9569 } { green 0.8510 } { blue 0.8510 } { alpha 1.0 } } inline
-CONSTANT: thread-status-suspended-background
-T{ rgba { red 0.9569 } { green 0.9177 } { blue 0.8510 } { alpha 1.0 } } inline
-CONSTANT: thread-status-running-background
-T{ rgba { red 0.9294 } { green 0.9569 } { blue 0.8510 } { alpha 1.0 } } inline
+CONSTANT: thread-status-stopped-background HEXCOLOR: F4D9D9
+CONSTANT: thread-status-suspended-background HEXCOLOR: F4EAD9
+CONSTANT: thread-status-running-background HEXCOLOR: EDF4D9
 
-CONSTANT: error-summary-background
-T{ rgba { red 0.9569 } { green 0.9177 } { blue 0.8510 } { alpha 1.0 } } inline
+CONSTANT: error-summary-background HEXCOLOR: F4EAD9
 
 CONSTANT: content-background COLOR: white
 CONSTANT: text-color COLOR: black