Contrast Ratio for Garry's mod

This module produces WCAG contrast ratio measurement and scoring.

API

COLOR:GetLuminance()

Get cached calculated the contrast ratio

Returns float contrast ratio

COLOR:CalcLuminance()

Get calculated the contrast ratio

Returns float contrast ratio

util.ContrastRatio

Get a score for the contrast between two colors

Parameters

• cSrc color
• cDst color

Returns float contrast ratio

util.ContrastRatioLevel

Get a level of the contrast between two colors

• cSrc color
• cDst color

Returns number level contrast ratio

util.ContrastRatioRate

Get a textual score from a numeric contrast value

Parameters

• cSrc color
• cDst color

Returns string score

util.ContrastColor

Get a contrast color for first argument

Parameters

• cSrc color
• cDst color
• cDstAlt color

Returns color contrast