Designer / Accessibility
Color Contrast Checker
Check text and background contrast, review WCAG pass levels, and compare accessible color pairs locally. Test readability, compare WCAG levels, and preview real interface text before shipping a color pair.
16.98:1
Contrast ratio
Pass
AA normal
Pass
AAA normal
Pass
AA large
Status
Loaded starter contrast pair
Suggested fixes
AA normal
Already passes
AAA normal
Already passes
Accessible heading
Previewing real interface copy is much more useful than reading a ratio in isolation. This block shows how a heading, paragraph, and button feel together.
Small text
Needs at least a 4.5:1 ratio for AA.
Large text
Needs at least a 3:1 ratio.
Button label
Contrast matters for every control.
Text
#111827
Background
#f9fafb
CSS preview
color: #111827; background: #f9fafb;
Contrast ratio
16.98:1
AA normal
Pass
Target 4.5:1
AA large
Pass
Target 3:1
AAA normal
Pass
Target 7:1
AAA large
Pass
Target 4.5:1
Recent checks
Why people use this
Accessibility checks are easier to trust when the UI preview looks like real product text.
Designers and frontend engineers both need the same answer, but in a format they can act on quickly.
Copyable summaries make handoff and review notes much smoother.
Natural next steps
This pairs directly with the Color Picker when someone finds a hue they want to adjust.
It also sets up future designer tools like gradient builders and token generators.
Even simple marketing pages and dashboards benefit from checking contrast before launch.