# Contrast Checker

Check text contrast against WCAG guidelines.

URL: https://everythingdeck.com/contrast-checker

## Processing
Processing takes place in your browser. Inputs and files are not uploaded or retained.

## How to use
Enter foreground and background hex colors to calculate their WCAG contrast ratio.

## Example
Black on white has a 21:1 contrast ratio.

## Inputs
text

## Outputs
text

## Capabilities
- contrast ratio
- AA normal
- AA large
- AAA normal
- AAA large

## Limitations
Opaque sRGB colors only. This checks text color contrast, not the accessibility of an entire design.

## Related tools
- [Aspect Ratio Calculator](https://everythingdeck.com/aspect-ratio-calculator)
- [Color Converter](https://everythingdeck.com/color-converter)