diff --git a/test/spec/ol/color.test.js b/test/spec/ol/color.test.js
index 83b45acc07..b230e289ad 100644
--- a/test/spec/ol/color.test.js
+++ b/test/spec/ol/color.test.js
@@ -121,7 +121,7 @@ describe('ol.color', function() {
     });
 
     it('throws an error on invalid colors', function() {
-      const invalidColors = ['tuesday', '#12345', '#1234567', 'rgb(255.0,0,0)'];
+      const invalidColors = ['tuesday', '#12345', '#1234567'];
       let i, ii;
       for (i = 0, ii = invalidColors.length; i < ii; ++i) {
         expect(function() {