diff --git a/index.js b/index.js
index 5ab68d5..6924251 100644
--- a/index.js
+++ b/index.js
@@ -3,9 +3,9 @@ import { Universe, Cell } from "wasm-game-of-life";
 import { memory } from "wasm-game-of-life/wasm_game_of_life_bg";
 
 const CELL_SIZE = 5; // px
-const GRID_COLOR = "#CCCCCC";
-const DEAD_COLOR = "#FFFFFF";
-const ALIVE_COLOR = "#000000";
+const GRID_COLOR = "#444444";
+const DEAD_COLOR = "#000000";
+const ALIVE_COLOR = "#FFFFFF";
 
 const universe = Universe.new();
 const width = universe.width();