colorutil

Documentation

Overview

Copyright 2023 The Gitea Authors. All rights reserved. SPDX-License-Identifier: MIT

Index

• func GetLuminance(r, g, b float64) float64
• func HexToRBGColor(colorString string) (float64, float64, float64)
• func UseLightTextOnBackground(r, g, b float64) bool

Functions

func GetLuminance

func GetLuminance(r, g, b float64) float64

return luminance given RGB channels Reference from: https://www.w3.org/WAI/GL/wiki/Relative_luminance

func HexToRBGColor

func HexToRBGColor(colorString string) (float64, float64, float64)

Get color as RGB values in 0..255 range from the hex color string (with or without #)

func UseLightTextOnBackground

func UseLightTextOnBackground(r, g, b float64) bool

Reference from: https://firsching.ch/github_labels.html In the future WCAG 3 APCA may be a better solution. Check if text should use light color based on RGB of background