Use this filter to be sure your website is not difficult to view for people with various types of colorblindness. While the site may look differently to someone who is colorblind, it should still be clear, legible, etc.
Cross-browser & cross-platform compatibility – Does the site work in as many browsing situations as possible? (Use Firefox, Chrome, and IE to see if it's consistent.) Is the site responsive, i.e., flexibly changing the layout depending on the screen size? (Use your phone and a tablet to see if it works well on those devices.)
Will my content work with screen readers? (Add captions to images and figures.)
Are the colors used high contrast? Do the colors create a hindrance to people with colorblindness or poor vision?