თარგი:RGBtoHSL.L/ინფო
 | ეს არის დოკუმენტაციის ქვეგვერდი (თარგი:RGBtoHSL.L). იგი შეიცავს საჭირო ინფორმაციას, კატეგორიებს და სხვა მასალას, რომელიც არის ორიგინალი თარგის ნაწილი. თარგი:RGBtoHSL.L · დოკუმენტაცია · განხილვა · გამოყენება |
This template computes the lightness value in [0..1] in the HSL color space (as defined in standard CSS3), from a color specified in the sRGB color space. The returned value is rounded to three decimals (which preserves the precision of RGB colors whose components are specified in the standard range [0..255]).
- Syntax
- {{RGBtoHSL.L|r|g|b}}
- The range of the three parameters is [0..255] ; they can be any numeric expressions.
- {{subst:RGBtoHSL.L|r|g|b|subst=subst:}}
- To replace the template invokation by the computed value when saving an article Wiki source.
- Algorithm used
- L = (max(r, g, b) + min(r, g, b)) / 255 / 2;
- return L round 3;
- Examples
- "{{RGBtoHSL.L|0|0|0}}" returns "0".
- "{{RGBtoHSL.L|0|0|1}}" returns "0.002".
- "{{RGBtoHSL.L|0|1|0}}" returns "0.002".
- "{{RGBtoHSL.L|0|1|1}}" returns "0.002".
- "{{RGBtoHSL.L|1|0|0}}" returns "0.002".
- "{{RGBtoHSL.L|1|0|1}}" returns "0.002".
- "{{RGBtoHSL.L|1|1|0}}" returns "0.002".
- "{{RGBtoHSL.L|1|1|1}}" returns "0.004".
- "{{RGBtoHSL.L|127|127|127}}" returns "0.498".
- "{{RGBtoHSL.L|127.5|127.5|127.5}}" returns "0.5".
- "{{RGBtoHSL.L|128|128|128}}" returns "0.502".
- "{{RGBtoHSL.L|255|255|254}}" returns "0.998".
- "{{RGBtoHSL.L|255|255|255}}" returns "1".
- "{{RGBtoHSL.L|255|0|0}}" returns "0.5".
- "{{RGBtoHSL.L|255|1|0}}" returns "0.5".
- "{{RGBtoHSL.L|255|127.5|0}}" returns "0.5".
- "{{RGBtoHSL.L|255|255|0}}" returns "0.5".
- "{{RGBtoHSL.L|127.5|255|0}}" returns "0.5".
- "{{RGBtoHSL.L|0|255|0}}" returns "0.5".
- "{{RGBtoHSL.L|0|255|127.5}}" returns "0.5".
- "{{RGBtoHSL.L|0|255|255}}" returns "0.5".
- "{{RGBtoHSL.L|0|127.5|255}}" returns "0.5".
- "{{RGBtoHSL.L|0|0|255}}" returns "0.5".
- "{{RGBtoHSL.L|127.5|0|255}}" returns "0.5".
- "{{RGBtoHSL.L|255|0|255}}" returns "0.5".
- "{{RGBtoHSL.L|255|0|127.5}}" returns "0.5".
- "{{RGBtoHSL.L|255|0|1}}" returns "0.5".
- example for "sandybrown" = "#F4A460" = "rgb(244, 164, 96)" = "hsl(27.6, 0.871, 0.667)"
- "{{RGBtoHSL.L|244|164|96}}" returns "0.667".
- same example using subst
- "{{subst:RGBtoHSL.L|244|164|96|subst=subst:}}" returns "0.667".
- See also