Lib.rs

This is a very simple and easy-to-use color conversion tool that can easily convert colors between Hex, RGB, RGBA, HSL, HSLA, HSV, and CMYK. And each type has its unique API, such as RGB can set color channels, RGBA can set transparency, HSL can set hue, saturation, and brightness, etc.

   use easy_color::{RGBA, RGB, HSL, Hex, ColorMix};
   use crate::easy_color::{IntoRGB, IntoHex, IntoRGBA, IntoHSL, IntoHSLA, IntoHSV, IntoCMYK};

   let hex:Hex = "#2bc48a".try_into().unwrap();
   
   let mut rgb:RGB = hex.into();
   // or
   let mut rgb = hex.to_rgb();
   assert_eq!(rgb.to_string(), "rgb(43,196,138)");
   rgb.set_red(255);
   assert_eq!(rgb.to_string(), "rgb(255,196,138)");
   
   let mut rgba:RGBA = rgb.into();
   // or
   let mut rgba = rgb.to_rgba();
   rgba.set_alpha(0.5);
   assert_eq!(rgba.to_string(), "rgba(255,196,138,0.50)");
   
   let mut hsl:HSL = rgba.into();
   // or
   let mut hsl = rgba.to_hsl();
   hsl.set_hue(240);
   assert_eq!(hsl.to_string(), "hsl(240,100%,88%)");
   
   let hex:Hex = hsl.into();
   // or
   let hex = hsl.to_hex();
   assert_eq!(hex.to_string(), "#C2C1FF");

   // mix two color
   let hsl:HSL = (0,0,0).try_into().unwrap();
   let rgba:RGBA = (255,255,255,1.0).try_into().unwrap();
   rgba.mix(hsl, None).to_string(); // rgba(127,127,127,1.00)
   rgba.mix(hsl, Some(0.35)).to_string(); // rgba(165,165,165,1.00)//!
   hsl.mix(rgba, None).to_string(); // hsl(0,0%,50%)

   rgba.is_dark(); // false
   rgba.is_light(); // true
   rgba.fade(0.5); // rgba(255,255,255, 0.5)

   // creat random color
   let rgb = RGB::random();
   let rgba = RGBA::random();
   let hsl = HSL::random();

   let hex:Hex = "#2bc48a".try_into().unwrap();
   let hex_str = hex.to_rgb().set_blue(255).to_hsl().set_lightness(50).to_cmyk().set_cyan(100).to_hex().to_string(); // #00B5FF

Hex

   let _hex:Hex = "#FAC".try_into().unwrap(); 
   let _hex:Hex = "#FFDFAC".try_into().unwrap();
   let _hex:Hex = "#FFDFACDC".try_into().unwrap() // hex with transparency

   let rgba:RGBA = "rgba(255,223,172,0.85)".try_into().unwrap();
   let hex:Hex = rgba.into();
   let hex_str = hex.to_hex_alpha();
   assert_eq!(hex_str, "#FFDFACD8");

   let hex_str2 = hex.to_alpha_hex();
   assert_eq!(hex_str, "#D8FFDFAC");

Convert hex to other types, such as:

   let hex:Hex = "#FFDFAC".try_into().unwrap();
   let rgb:RGB = hex.into();
   assert_eq!(rgb.to_string(), "rgb(255,223,172)");

   let _hsl:HSL = hex.into();
   let _rgba:RGBA = hex.into();
   let _hsla:HSLA = hex.into();
   let _hsv:HSV = hex.into();
   let _cmyk:CMYK = hex.into();

RGB

RGB can be parsed from a string in the format "rgb(r,g,b)" or from a tuple (r,g,b)

• r:u8 - red value(0~255)
• g:u8 - green value(0~255)
• b:u8 - blue value(0~255)

    let mut rgb:RGB = "rgb(43,196,138)".try_into().unwrap();
    rgb.set_green(255);
    assert_eq!(rgb.to_string(), "rgb(43,255,138)");

    let rgb:RGB = (43, 196, 138).try_into().unwrap();
    assert_eq!(rgb.to_string(), "rgb(43,196,138)");
    let hex:Hex = rgb.into();
    assert_eq!(hex.to_string(), "#2BC48A");

    let _rgba:RGBA = rgb.into();
    let _hsl:HSL = rgb.into();
    let _hsla:HSLA = rgb.into();
    let _hsv:HSV = rgb.into();
    let _cmyk:CMYK = rgb.into();

RGBA

RGBA can be parsed from a string in the format "rgba(r,g,b,a)" or from a tuple (r,g,b,a)

• r:u8 - red value(0~255)
• g:u8 - green value(0~255)
• b:u8 - blue value(0~255)
• a:f32 - alpha(0~1)

    let mut rgba:RGBA = "rgba(125,60,98,0.8)".try_into().unwrap();
    rgba.set_alpha(0.5);
    assert_eq!(rgba.to_string(), "rgba(125,60,98,0.50)");

    let rgba:RGBA = (125,60,240,0.5).try_into().unwrap();
    let hsl:HSL = rgba.into();
    assert_eq!(hsl.to_string(), "hsl(262,85%,79%)");

it also can be convert to other types.

HSL

HSL can be parsed from a string in the format "hsl(h, s%, l%)" or from a tuple (h,s,l)

• h:u32 - Hue(0~360)
• s:u32 - saturation(0~100)
• l:u32 - lightness(0~100)

    let mut hsl:HSL = "hsl(262,85%,79%)".try_into().unwrap();
    hsl.set_lightness(50);
    assert_eq!(hsl.to_string(), "hsl(262,85%,50%)");

    let hsl:HSL = (125,60,75).try_into().unwrap();
    let rgb:RGB = hsl.into();
    assert_eq!(rgb.to_string(), "rgb(153,229,159)")

HSLA

HSLA can be parsed from a string in the format "hsla(h, s%, l%, a)" or from a tuple (h,s,l,a)

• h:u32 - Hue(0~360)
• s:u32 - saturation(0~100)
• l:u32 - lightness(0~100)
• a:f32 - alpha(0~1)

    let mut hsla:HSLA = "hsla(262,85%,79%, 0.7)".try_into().unwrap();
    hsla.set_alpha(0.5);
    assert_eq!(hsla.to_string(), "hsla(262,85%,79%,0.50)");

    let hsla:HSLA = (125,60,75,0.6).try_into().unwrap();
    let rgba:RGBA = hsla.into();
    assert_eq!(rgba.to_string(), "rgba(153,229,159,0.60)");

HSV

HSV can be parsed from a string in the format "hsl(h, s%, v%)" or from a tuple (h,s,v).

• h:u32 - Hue(0~360)
• s:u32 - saturation(0~100)
• v:u32 - Value(0~100)

    use easy_color::{RGB, HSV};
    let mut hsv:HSV = "hsv(262,85%,79%)".try_into().unwrap();
    hsv.set_value(50);
    assert_eq!(hsv.to_string(), "hsv(262,85%,50%)");

    let hsv:HSV = (125,60,75).try_into().unwrap();
    assert_eq!(hsv.to_rgb().to_string(), "rgb(76,191,86)");

CMYK

CMYK can be parsed from a string in the format "cmyk(c,m,y,k)" or from a tuple (c,m,y,k).

• c:u8 - cyan value(0~100)
• m:u8 - magenta value(0~100)
• y:u8 - yellow value(0~100)
• k:u8 - black value(0~100)

    use easy_color::{Hex, CMYK};
    let mut cmyk:CMYK = "cmyk(77,34,53,38)".try_into().unwrap();
    cmyk.set_cyan(100);
    assert_eq!(cmyk.to_string(), "cmyk(100,34,53,38)");

    let cmyk:CMYK = (100,34,53,38).try_into().unwrap();
    assert_eq!(cmyk.to_hex().to_string(), "#00684A");

Methods

Each type of structure has the following methods:

    fn is_dark(&self) -> bool;
    fn is_light(&self) -> bool;
    fn grayscale(&self) -> Self; 
    fn negate(&self) -> Self;
    fn mix(&self, other:T, weight:Option<f32>) -> Self;
    fn darken(&mut self, ratio:f32) -> Self;
    fn lighten(&mut self, ratio:f32) -> Self;