diff --git a/src/utils.spec.js b/src/utils.spec.js
index fe946a9..3556001 100644
--- a/src/utils.spec.js
+++ b/src/utils.spec.js
@@ -3,22 +3,19 @@ const utils = require('./utils');
 
 describe('utils', () => {
   describe('hex2rgb', () => {
-    test('#ff0000', () => {
-      expect(utils.hex2rgb('#ff0000')).toEqual([255,0,0]);
+    describe.each([
+      ['#ff0000', 255, 0, 0],
+      ['#ffff00', 255, 255, 0],
+      ['#0000ff', 0, 0, 255],
+      ['#112233', 17, 34, 51],
+      ['#888', 136, 136, 136],
+    ])('when given "%s"', (input, r, g, b) => {
+      test(`returns [${r},${g},${b}]`, () => {
+        expect(utils.hex2rgb(input)).toEqual([r, g, b]);
+      });
     });
-    test('#ffff00', () => {
-      expect(utils.hex2rgb('#ffff00')).toEqual([255,255,0]);
-    });
-    test('#0000ff', () => {
-      expect(utils.hex2rgb('#0000ff')).toEqual([0,0,255]);
-    });
-    test('#112233', () => {
-      expect(utils.hex2rgb('#112233')).toEqual([17,34,51]);
-    });
-    test('#888', () => {
-      expect(utils.hex2rgb('#888')).toEqual([136,136,136]);
-    });
-    test('33', () => {
+
+    test('throws an Error when given "33"', () => {
       function wrapper() {
         utils.hex2rgb('33');
       }