diff --git a/config.def.h b/config.def.h
index 1677f6f..9e0c293 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1,11 +1,15 @@
+#define COLOR(hex)    { ((hex >> 24) & 0xFF) / 255.0f, \
+                        ((hex >> 16) & 0xFF) / 255.0f, \
+                        ((hex >> 8) & 0xFF) / 255.0f, \
+                        (hex & 0xFF) / 255.0f }
 /* appearance */
 static const int sloppyfocus               = 1;  /* focus follows mouse */
 static const int bypass_surface_visibility = 0;  /* 1 means idle inhibitors will disable idle tracking even if it's surface isn't visible  */
 static const unsigned int borderpx         = 1;  /* border pixel of windows */
-static const float bordercolor[]           = {0.5, 0.5, 0.5, 1.0};
-static const float focuscolor[]            = {1.0, 0.0, 0.0, 1.0};
+static const float bordercolor[]           = COLOR(0x808080ff);
+static const float focuscolor[]            = COLOR(0xff0000ff);
 /* To conform the xdg-protocol, set the alpha to zero to restore the old behavior */
-static const float fullscreen_bg[]         = {0.1, 0.1, 0.1, 1.0};
+static const float fullscreen_bg[]         = {0.1, 0.1, 0.1, 1.0}; /* You can also use glsl colors */
 
 /* tagging - tagcount must be no greater than 31 */
 #define TAGCOUNT (9)