Convert a hex colour into hue, saturation and lightness — the form that makes a colour easy to lighten, darken or desaturate by hand.
HSL exists because hex is unreadable to a human eye. Nobody can tell at a glance that #4a7c2f is a muted green, but hsl(96 46% 33%) says it outright: green hue, moderately saturated, fairly dark. That is why HSL is the form to reach for when you want a lighter variant of a colour rather than a different one.
L = (max + min) / 2, S = (max − L) / min(L, 1 − L), H from which channel is the maximum
Lightness sits halfway between the strongest and weakest channel. Saturation measures how far apart they are, scaled so that mid lightness allows the widest range. Hue comes from which channel wins and by how much, mapped onto a 360 degree circle.
A number that disagrees with its source is a defect, not a rounding preference.
What did you enter, what did the tool show, and what did you expect instead? If you have a source that disagrees with ours, a link to it is the most useful thing you can send.
Opens your mail app with the page and tool already filled in.
Turn hue, saturation and lightness into a hex code — useful when a colour was picked by feel and now has to go into a stylesheet or a design file.
Convert a hex colour to its red, green and blue channels, including the shorthand and alpha forms defined by the CSS specification.
Convert a hex colour to OKLCH, the perceptual colour space where equal changes in lightness actually look equal.