साचा:RGBtoHSL.H - विकिपीडिया

Syntax

{{RGBtoHSL.H|r|g|b}}

The range of the three parameters is [0..255] ; they can be any numeric expressions.

{{subst:RGBtoHSL.H|r|g|b|subst=subst:}}

To remplace the template invokation by the computed value when saving an article Wiki source.

Algorithm used

if r = g and g = b then

H = 0;

else if g >= r and g >= b then

if r > b

then H = 120 - 60 * (r - b) / (g - b);

else H = 120 + 60 * (b - r) / (g - r);

else if b >= r and b >= g then

if g > r

then H = 240 - 60 * (g - r) / (b - r);

else H = 240 + 60 * (r - g) / (b - g);

else

if b > g

then H = 360 - 60 * (b - g) / (r - g);

else H = 60 * (g - b) / (r - b);

return H round 1;

Examples

"{{RGBtoHSL.H|244|164|96}}" returns "27.6".

"{{subst:RGBtoHSL.H|244|164|96|subst=subst:}}" returns "27.6".