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Lab

Struct Lab

pub struct Lab {
    pub lightness: f64,
    pub a: f64,
    pub b: f64,
    pub alpha: f32,
}

Expand description

An CIE defined colour space representing L - perceptual lightness, and two axes A & B. The components are:

L - a number between 0.0 and 100.0
A - a number between -125.0 and +125.0
B - a number between -125.0 and +125.0
Alpha - a number between 0.0 and 100.0

Fields§

§lightness: f64§a: f64§b: f64§alpha: f32

Implementations§

impl Lab

pub fn new(lightness: f64, a: f64, b: f64, alpha: f32) -> Self

Trait Implementations§

impl Clone for Lab

fn clone(&self) -> Lab

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl<T, U> ColorMix<T, U> for Lab
where Self: From<T> + From<U>,

fn mix(first: T, second: U, percentage: f64) -> Self

impl Debug for Lab

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

Formats the value using the given formatter. Read more

impl Display for Lab

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

Formats the value using the given formatter. Read more

impl From<A98Rgb> for Lab

fn from(value: A98Rgb) -> Self

Converts to this type from the input type.

impl From<Color> for Lab

fn from(value: Color) -> Self

Converts to this type from the input type.

impl From<DisplayP3> for Lab

fn from(value: DisplayP3) -> Self

Converts to this type from the input type.

impl From<Hex> for Lab

fn from(value: Hex) -> Self

Converts to this type from the input type.

impl From<Hsl> for Lab

fn from(value: Hsl) -> Self

Converts to this type from the input type.

impl From<Hsv> for Lab

fn from(value: Hsv) -> Self

Converts to this type from the input type.

impl From<Hwb> for Lab

fn from(value: Hwb) -> Self

Converts to this type from the input type.

impl From<Lab> for A98Rgb

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for DisplayP3

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Hex

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Hsl

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Hsv

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Hwb

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Lch

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for LinearRgb

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Oklab

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Oklch

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for ProphotoRgb

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Rec2020

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for Srgb

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for XyzD50

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lab> for XyzD65

fn from(value: Lab) -> Self

Converts to this type from the input type.

impl From<Lch> for Lab

fn from(value: Lch) -> Self

Converts to this type from the input type.

impl From<LinearRgb> for Lab

fn from(value: LinearRgb) -> Self

Converts to this type from the input type.

impl From<Named> for Lab

fn from(value: Named) -> Self

Converts to this type from the input type.

impl From<Oklab> for Lab

fn from(value: Oklab) -> Self

Converts to this type from the input type.

impl From<Oklch> for Lab

fn from(value: Oklch) -> Self

Converts to this type from the input type.

impl From<ProphotoRgb> for Lab

fn from(value: ProphotoRgb) -> Self

Converts to this type from the input type.

impl From<Rec2020> for Lab

fn from(value: Rec2020) -> Self

Converts to this type from the input type.

impl From<Srgb> for Lab

fn from(value: Srgb) -> Self

Converts to this type from the input type.

impl From<XyzD50> for Lab

fn from(value: XyzD50) -> Self

Converts to this type from the input type.

impl From<XyzD65> for Lab

fn from(value: XyzD65) -> Self

Converts to this type from the input type.

impl Gamut for Lab

fn in_gamut(&self) -> bool

Returns true if all colour channels are within the natural bounds of this colour space. Alpha is not considered — it is always clamped on construction.

fn clamp_to_gamut(&self) -> Self

Returns a copy with all colour channels naively clamped to the natural bounds. Read more

fn map_to_gamut(self) -> Self

Perceptually maps this colour into gamut. Read more

impl PartialEq for Lab

fn eq(&self, other: &Lab) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToAlpha for Lab

fn to_alpha(&self) -> f32

Returns a number between 0.0 (fully transparent) to 100.0 (fully opaque).

fn fully_opaque(&self) -> bool

Returns true if the alpha of this colour is 100.0

fn fully_transparent(&self) -> bool

Returns true if the alpha of this colour is 0.0

impl TryFrom<Lab> for Named

type Error = ToNamedError

The type returned in the event of a conversion error.

fn try_from(value: Lab) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Lab

impl StructuralPartialEq for Lab

Auto Trait Implementations§

impl Freeze for Lab

impl RefUnwindSafe for Lab

impl Send for Lab

impl Sync for Lab

impl Unpin for Lab

impl UnsafeUnpin for Lab

impl UnwindSafe for Lab

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<C, T> ColorDistance<T> for C
where C: Copy, Lab: From<C> + From<T>,

fn close_to(&self, other: T, tolerance: f64) -> bool

Compares self to other via delta_e, checking that the result is less than or equal to tolerance. Read more

fn far_from(&self, other: T, tolerance: f64) -> bool

Compares self to other via delta_e, checking that the result is greater than or equal to tolerance. Read more

fn delta_e(&self, other: T) -> f64

This uses the CIEDE2000 Delta E formula difference between self and other. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<C, T> WcagColorContrast<T> for C
where C: Copy, T: Copy, Srgb: From<C> + From<T>,

fn wcag_contrast_ratio(&self, other: T) -> f64

Calculate the contrast ratio between self and other. colors according to WCAG 2.1. Returns a value between 1:1 and 21:1 Read more

fn wcag_level(&self, other: T) -> WcagLevel

Get the WCAG level for the contrast between self and other. Read more

fn find_minimum_contrast<Space>( &self, other: T, level: WcagLevel, ) -> Option<Space>
where Self: WcagColorContrast<Space>, Space: ColorMix<Self, T> + From<Self> + From<T> + Copy + PartialEq + Debug, Srgb: From<Space>, Hex: From<Space>,

Find the closest color that meets a specific WCAG level against a background. Read more