HTML HSL and HSLA Colors
Posted: Fri Oct 27, 2023 8:04 am
HTML HSL and HSLA Colors
HSL stands for hue, saturation, and lightness.
HSLA color values are an extension of HSL with an Alpha channel
(opacity).
HSL Color Values
In HTML, a color can be specified using hue, saturation, and lightness (HSL) in
the form:
hsl(hue, saturation, lightness)
Hue is a degree on the color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is a percentage value. 0% means a shade of gray, and 100% is the full color.
Lightness is also a percentage value. 0% is black, and 100% is white.
Experiment by mixing the HSL values below:
HUE
0
SATURATION
100%
LIGHTNESS
50%
Example
hsl(0, 100%, 50%)
hsl(240, 100%, 50%)
hsl(147, 50%, 47%)
hsl(300, 76%, 72%)
hsl(39, 100%, 50%)
hsl(248, 53%, 58%)
Try it Yourself »
Saturation
Saturation can be described as the intensity of a color.
100% is pure color, no shades of gray.
50% is 50% gray, but you can still see the color.
0% is completely gray; you can no longer see the color.
Example
hsl(0, 100%, 50%)
hsl(0, 80%, 50%)
hsl(0, 60%, 50%)
hsl(0, 40%, 50%)
hsl(0, 20%, 50%)
hsl(0, 0%, 50%)
Try it Yourself »
Lightness
The lightness of a color can be described as how much light you want to give the color, where 0% means no light (black), 50% means 50% light (neither dark nor light),
and 100% means full lightness (white).
Example
hsl(0, 100%, 0%)
hsl(0, 100%, 25%)
hsl(0, 100%, 50%)
hsl(0, 100%, 75%)
hsl(0, 100%, 90%)
hsl(0, 100%, 100%)
Try it Yourself »
Shades of Gray
Shades of gray are often defined by setting the hue and saturation to 0, and
adjusting the lightness from 0% to 100% to get darker/lighter shades:
Example
hsl(0, 0%, 20%)
hsl(0, 0%, 30%)
hsl(0, 0%, 40%)
hsl(0, 0%, 60%)
hsl(0, 0%, 70%)
hsl(0, 0%, 90%)
Try it Yourself »
HSLA Color Values
HSLA color values are an extension of HSL color values, with an Alpha channel
- which specifies the opacity for a color.
An HSLA color value is
specified with:
hsla(hue, saturation, lightness,
alpha)
The alpha parameter is a number
between 0.0 (fully transparent) and 1.0 (not transparent at all):
Experiment by mixing the HSLA values below:
HUE
0
SATURATION
100%
LIGHTNESS
50%
ALPHA
0.5
Example
hsla(9, 100%, 64%, 0)
hsla(9, 100%, 64%, 0.2)
hsla(9, 100%, 64%, 0.4)
hsla(9, 100%, 64%, 0.6)
hsla(9, 100%, 64%, 0.8)
hsla(9, 100%, 64%, 1)
Try it Yourself »
★
+1
Reference: https://www.w3schools.com/html/html_colors_hsl.asp
HSL stands for hue, saturation, and lightness.
HSLA color values are an extension of HSL with an Alpha channel
(opacity).
HSL Color Values
In HTML, a color can be specified using hue, saturation, and lightness (HSL) in
the form:
hsl(hue, saturation, lightness)
Hue is a degree on the color wheel from 0 to 360. 0 is red, 120 is green, and 240 is blue.
Saturation is a percentage value. 0% means a shade of gray, and 100% is the full color.
Lightness is also a percentage value. 0% is black, and 100% is white.
Experiment by mixing the HSL values below:
HUE
0
SATURATION
100%
LIGHTNESS
50%
Example
hsl(0, 100%, 50%)
hsl(240, 100%, 50%)
hsl(147, 50%, 47%)
hsl(300, 76%, 72%)
hsl(39, 100%, 50%)
hsl(248, 53%, 58%)
Try it Yourself »
Saturation
Saturation can be described as the intensity of a color.
100% is pure color, no shades of gray.
50% is 50% gray, but you can still see the color.
0% is completely gray; you can no longer see the color.
Example
hsl(0, 100%, 50%)
hsl(0, 80%, 50%)
hsl(0, 60%, 50%)
hsl(0, 40%, 50%)
hsl(0, 20%, 50%)
hsl(0, 0%, 50%)
Try it Yourself »
Lightness
The lightness of a color can be described as how much light you want to give the color, where 0% means no light (black), 50% means 50% light (neither dark nor light),
and 100% means full lightness (white).
Example
hsl(0, 100%, 0%)
hsl(0, 100%, 25%)
hsl(0, 100%, 50%)
hsl(0, 100%, 75%)
hsl(0, 100%, 90%)
hsl(0, 100%, 100%)
Try it Yourself »
Shades of Gray
Shades of gray are often defined by setting the hue and saturation to 0, and
adjusting the lightness from 0% to 100% to get darker/lighter shades:
Example
hsl(0, 0%, 20%)
hsl(0, 0%, 30%)
hsl(0, 0%, 40%)
hsl(0, 0%, 60%)
hsl(0, 0%, 70%)
hsl(0, 0%, 90%)
Try it Yourself »
HSLA Color Values
HSLA color values are an extension of HSL color values, with an Alpha channel
- which specifies the opacity for a color.
An HSLA color value is
specified with:
hsla(hue, saturation, lightness,
alpha)
The alpha parameter is a number
between 0.0 (fully transparent) and 1.0 (not transparent at all):
Experiment by mixing the HSLA values below:
HUE
0
SATURATION
100%
LIGHTNESS
50%
ALPHA
0.5
Example
hsla(9, 100%, 64%, 0)
hsla(9, 100%, 64%, 0.2)
hsla(9, 100%, 64%, 0.4)
hsla(9, 100%, 64%, 0.6)
hsla(9, 100%, 64%, 0.8)
hsla(9, 100%, 64%, 1)
Try it Yourself »
★
+1
Reference: https://www.w3schools.com/html/html_colors_hsl.asp