diff --git a/src/graph.lua b/src/graph.lua
index 1f46cea..db88278 100644
--- a/src/graph.lua
+++ b/src/graph.lua
@@ -68,7 +68,7 @@ function self.render()
     love.graphics.rectangle('line', x, y, w, h)
 
     -- grid
-    love.graphics.setColor(0.2, 0.2, 0.4, 0.2)
+    love.graphics.setColor(0.2, 0.2, 0.3, 0.2)
     local gridsize = 64
     for gx = 1, gridsize - 2 do
       love.graphics.line(x + margin + gx * w/gridsize, y + margin, x + margin + gx * w/gridsize, y + h - margin)