Struct Oklab

pub struct Oklab;

🌌 The Oklab color space, intended to be a perceptually uniform color space.

Its components are [L, a, b] with

• L - the lightness with a natural bound between 0 and 1, where 0 represents pure black and 1 represents the lightness of white;
• a - how green/red the color is; and
• b - how blue/yellow the color is.

a and b are unbounded, but are usually between -0.5 and 0.5.

This corresponds to the color space in CSS Color Module Level 4 § 9.2 . It is defined on Björn Ottosson’s blog. It is similar to the CIELAB color space but with improved hue constancy.

Oklab has a cylindrical counterpart: Oklch.

Trait Implementations

impl Clone for Oklab

fn clone(&self) -> Oklab

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ColorSpace for Oklab

const TAG: Option<ColorSpaceTag>

The tag corresponding to this color space, if a matching tag exists.

const WHITE_COMPONENTS: [f32; 3]

The component values for the color white within this color space.

fn to_linear_srgb(src: [f32; 3]) -> [f32; 3]

Convert an opaque color to linear sRGB.

fn from_linear_srgb(src: [f32; 3]) -> [f32; 3]

Convert an opaque color from linear sRGB.

fn scale_chroma([l, a, b]: [f32; 3], scale: f32) -> [f32; 3]

Scale the chroma by the given amount.

fn convert<TargetCS: ColorSpace>(src: [f32; 3]) -> [f32; 3]

Convert to a different color space.

fn clip([l, a, b]: [f32; 3]) -> [f32; 3]

Clip the color’s components to fit within the natural gamut of the color space.

const IS_LINEAR: bool = false

Whether the color space is linear.

const LAYOUT: ColorSpaceLayout = ColorSpaceLayout::Rectangular

The layout of the color space.

const WHITE_POINT: Chromaticity = Chromaticity::D65

The white point of the color space.

fn to_linear_srgb_absolute(src: [f32; 3]) -> [f32; 3]

Convert an opaque color to linear sRGB, without chromatic adaptation.

fn from_linear_srgb_absolute(src: [f32; 3]) -> [f32; 3]

Convert an opaque color from linear sRGB, without chromatic adaptation.

fn convert_absolute<TargetCS: ColorSpace>(src: [f32; 3]) -> [f32; 3]

Convert to a different color space, without chromatic adaptation.

fn chromatically_adapt( src: [f32; 3], from: Chromaticity, to: Chromaticity, ) -> [f32; 3]

Chromatically adapt the color between the given white point chromaticities.

impl Debug for Oklab

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Oklab> for ColorSpaceTag

fn from(_: Oklab) -> Self

Converts to this type from the input type.

impl Copy for Oklab