alt-PurusAnte

alt.ts

/**
 * Given a desired minimum contrast ratio, a base color, and an array of colors,
 * return the first color in the array with an acceptable level of contrast
 * against the base color.
 * @param options 
 */
function getFirstUsableColorBasedOnContrastRatio(options: {
	ratio: number;
	baseColor: Color;
	colors: Color[];
}) {
	for (let entry of options.colors) {
		if (options.baseColor.hasSufficientContrastAgainst(entry, options.ratio)) {
			return entry;
		}
	}
	return options.colors[0];
}