saantonandre
/ utils.lua
Last active
June 1, 2026 20:17
Lua HEX to RGB, short hex and alpha channel support, validation, fractional/integer output
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| local utils = {} | |
| --- Converts a hex color string to rgb/rgba values | |
| --- @param hexColor string | |
| --- @param asFraction? boolean | |
| function utils.hexToRgb(hexColor, asFraction) | |
| if (not utils.isValidHexColor(hexColor)) then error("Invalid hex color string: " .. hexColor) end | |
| local parse = function(f, t) | |
| local value = tonumber("0x" .. hexColor:sub(f, t or f)) * (t and 1 or 17) | |
| return (asFraction and value / 255) or value |