Safe Haskell	Safe-Inferred
Language	Haskell98

Data.Colour.Ok

Description

Functions for converting Colour values to and from the Oklab space, and convenience functions for the derived Oklch space. See https://bottosson.github.io/posts/oklab/.

Synopsis

okLab :: Floating a => a -> a -> a -> Colour a
okLabView :: Floating a => Colour a -> (a, a, a)
okLCh :: Floating a => a -> a -> a -> Colour a
okLChView :: RealFloat a => Colour a -> (a, a, a)

Documentation

okLab Source #

Arguments

:: Floating a
=> a	L* coordinate (lightness)
-> a	a* coordinate
-> a	b* coordinate
-> Colour a

Returns the colour for given Oklab coordinates, which is a perceptually uniform colour space inspired by CIELAB but which handles blue hues more accurately.

A white point is not specified because Oklab assumes a standard d65 daylight illuminant.

okLabView :: Floating a => Colour a -> (a, a, a) Source #

Returns the Oklab coordinates of a colour, which is a perceptually uniform colour space inspired by CIELAB but which handles blue hues more accurately.

A white point is not specified because Oklab assumes a standard d65 daylight illuminant.

okLCh Source #

Arguments

:: Floating a
=> a	L* coordinate (lightness)
-> a	C* coordinate (chroma)
-> a	h* coordinate (hue)
-> Colour a

Constructs a colour from a lightness, chroma, and hue given in LCh polar coordinates correspondong to an Oklab coordinate.

okLChView :: RealFloat a => Colour a -> (a, a, a) Source #

Returns the Oklab LCh coordinates of a colour. The lightness coordinate is the same as in Oklab, while the chroma C and hue h are the (a,b)-coordinates expressed in polar form.