Color contrast is important for users with colorblindness, limited vision, and other visual disabilities.
WebAIM, a nonprofit organization which has been working with web accessibility since 1999, maintains two different color contrast checking tools (both still active as of 2023):
- Color-Reliant Link Contrast Checker – Use this color contrast checker to make sure that your hyperlink text color and background colors meet accessibility contrast ratio requirements.
- Color Contrast Checker – Use this color contrast checker to make sure that your foreground and background colors meet accessibility contrast ratio requirements.