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Friday, March 3, 2017

Less - Color Channel Functions

Less supports few build-in functions which set value about a channel. The channel set the value depending on the color definition. The HSL colors have hue, saturation and lightness channel and the RGB color have red, green and blue channel. Following are the list of color channel function:

S.N. Function & Description Example
1 hue
In HSL color space, the hue channel is extracted of the color object. 
 background: hue(hsl(75, 90%, 30%));
it compiles in the CSS as shown below : 
background: 75;
2 saturation
In HSL color space, the saturation channel is extracted of the color object. 
background: saturation(hsl(75, 90%, 30%));
It compiles in the CSS as shown below: 
background: 90%;
3 lightness
In HSL color space, the lightness channel is extracted of the color object. 
  background: lightness(hsl(75, 90%, 30%));
It compiles in the CSS as shown below: 
background: 30%;
4 hsvhue
In HSV color space, the hue channel is extracted of the color object. 
background: hsvhue(hsv(75, 90%, 30%));
It compiles in the CSS as shown below: 
background: 75;
5 hsvsaturation
In HSL color space, the saturation channel is extracted of the color object. 
background: hsvsaturation(hsv(75, 90%, 30%));
It compiles in the CSS as shown below: 
background: 90%;
6 hsvvalue
In HSL color space, the value channel is extracted of the color object. 
background: hsvvalue(hsv(75, 90%, 30%));
It compiles in the CSS as shown below: 
background: 30%;
7 red
The red channel is extracted of the color object. 
background: red(rgb(5, 15, 25));
It compiles in the CSS as shown below: 
background: 5;
8 green
The green channel is extracted of the color object. 
background: green(rgb(5, 15, 25));
It compiles in the CSS as shown below: 
background: 15;
9 blue
The blue channel is extracted of the color object. 
background: blue(rgb(5, 15, 25));
It compiles in the CSS as shown below: 
background: 25;
10 alpha
The alpha channel is extracted of the color object. 
background: alpha(rgba(5, 15, 25, 1.5));
It compiles in the CSS as shown below: 
background: 2;
11 luma
luma value is calculated of a color object. 
background: luma(rgb(50, 250, 150));
It compiles in the CSS as shown below: 
background: 71.2513323%;
12 luminance
The luma value is calculated without gamma correction. 
background: luminance(rgb(50, 250, 150));
It compiles in the CSS as shown below: 
background: 78.53333333%;
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