Template:ColorToLum

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Converts most legal web colors to a W3C relative luminance value. The color may be specified as either by HTML color name or by HSL or by RGB or by Hex value.

Examples

• {{ColorToLum|Lime}} → 0.7152
• {{ColorToLum|hsl(120,100%,50%)}} → 0.7152
• {{ColorToLum|#00FF00}} → 0.7152
• {{ColorToLum|rgb(0,255,0)}} → 0.7152
• {{ColorToLum|rgb(0.0%,100.0%,0.0%)}} → 0.7152

Consistency check

Color		Computed Relative Luminance
		From Name	From HSL	From Hex	From RGB	From RGB%
	Black	0	0	0	0	0
	White	1	1	1	1	1
	Red	0.2126	0.2126	0.2126	0.2126	0.2126
	Lime	0.7152	0.7152	0.7152	0.7152	0.7152
	Blue	0.0722	0.0722	0.0722	0.0722	0.0722
	Yellow	0.9278	0.9278	0.9278	0.9278	0.9278
	Cyan	0.7874	0.7874	0.7874	0.7874	0.7874
	Magenta	0.2848	0.2848	0.2848	0.2848	0.2848
	Silver	0.52711512570581	0.52720723642853	0.52711512570581	0.52711512570581	0.52720723642853
	Gray	0.2158605001139	0.21589697895456	0.2158605001139	0.2158605001139	0.21589697895456
	Maroon	0.045891942324215	0.045899697725739	0.045891942324215	0.045891942324215	0.045899697725739
	Olive	0.20027537200568	0.20030921707404	0.20027537200568	0.20027537200568	0.20030921707404
	Green	0.15438342968146	0.1544095193483	0.15438342968146	0.15438342968146	0.1544095193483
	Purple	0.061477070432439	0.061487459606258	0.061477070432439	0.061477070432439	0.061487459606258
	Teal	0.16996855778968	0.16999728122882	0.16996855778968	0.16996855778968	0.16999728122882
	Navy	0.015585128108224	0.015587761880519	0.015585128108224	0.015585128108224	0.015587761880519

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