Struct Hct 

pub struct Hct { /* private fields */ }

Hue, chroma and tone: CAM16 hue and chroma with L* as tone, so a tone difference predicts contrast (40 gives at least 3:1, 50 at least 4.5:1).

Implementations

impl Hct

pub fn from_hct(hue: f64, chroma: f64, tone: f64) -> Self

The sRGB color closest to the request. Hue and tone are met when possible and chroma is reduced to what they allow. Non-finite inputs count as 0.

pub fn from_argb(argb: u32) -> Self

An ARGB color. The alpha channel is ignored for measurement and kept in Self::argb.

pub fn hue(&self) -> f64

Hue in 0.0..360.0.

pub fn chroma(&self) -> f64

Chroma, whose maximum depends on hue and tone.

pub fn tone(&self) -> f64

Tone (L*) in 0.0..=100.0.

pub fn argb(&self) -> u32

The color as ARGB.

pub fn is_blue(hue: f64) -> bool

Whether hue is in upstream’s blue range, 250..270.

pub fn is_yellow(hue: f64) -> bool

Whether hue is in upstream’s yellow range, 105..125.

pub fn is_cyan(hue: f64) -> bool

Whether hue is in upstream’s cyan range, 170..207.

pub fn in_viewing_conditions(&self, vc: &ViewingConditions) -> Self

This color as it would appear in vc, expressed in the standard viewing conditions.

Trait Implementations

impl Clone for Hct

fn clone(&self) -> Hct

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Hct

impl Debug for Hct

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

Formats the value using the given formatter.

impl PartialEq for Hct

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Hct