The hsla() functional notation expresses a given color according to its hue, saturation, and lightness components. An optional alpha component represents the color's transparency.
Note: The Level 4 specification allows for space-separated in addition to comma-separated values.
hsla(100, 100%, 50%, 1) /* #5f0 */ hsla(235, 100%, 50%, .5) /* #0015ff with 50% opacity */ hsla(235 100% 50% / 1); /* CSS Colors 4 space-separated values */
hsla(H, S, L[, A])
H (hue) is an <angle> of the color circle given in degs, rads, grads, or turns in CSS Color Module Level 4. When written as a unitless <number>, it is interpreted as degrees, as specified in CSS Color Module Level 3. By definition, red=0deg=360deg, with the other colors spread around the circle, so green=120deg, blue=240deg, etc. As an <angle>, it implicitly wraps around such that -120deg=240deg, 480deg=120deg, -1turn=1turn, etc.
S (saturation) and L (lightness) are percentages. 100% saturation is completely saturated, while 0% is completely unsaturated (gray). 100% lightness is white, 0% lightness is black, and 50% lightness is "normal."
A (alpha) can be a <number> between 0 and 1, or a <percentage>, where the number 1 corresponds to 100% (full opacity).
hsla(H S L[ / A])
CSS Colors Level 4 adds support for space-separated values in the functional notation.
No compatibility data found for css.types.color.alpha.
Check for problems with this page or contribute missing data to mdn/browser-compat-data.
No compatibility data found for css.types.color.space_separated_functional_notation.
Check for problems with this page or contribute missing data to mdn/browser-compat-data.
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/hsla
| Name | CSS |
| Version | |
| Badge |
|
| Last Updated | 2022-04-27T17:24:15Z |