diff --git a/render.go b/render.go
index e2557ec..85f705b 100644
--- a/render.go
+++ b/render.go
@@ -46,7 +46,7 @@ func main() {
 		go computeThread()
 	}
 
-	colorStep := float64(Iterations) * 256
+	colorStep := float64(Iterations) * 128
 	colors = interpolateColors("Plan9", colorStep)
 
 	log.Fatal(http.ListenAndServe(":6161", nil))