增加各种颜色到HEX的转换，以及色彩理论计算。

color-module/src/lib.rs

@@ -1,8 +1,8 @@
 use std::str::FromStr;
 
 use palette::{
-    color_difference::Wcag21RelativeContrast, Darken, FromColor, Hsl, Lab, Lighten, Mix, Oklch,
-    ShiftHue, Srgb,
+    color_difference::Wcag21RelativeContrast, color_theory::*, convert::FromColorUnclamped, Darken,
+    FromColor, Hsl, IsWithinBounds, Lab, Lighten, Mix, Oklch, ShiftHue, Srgb,
 };
 use wasm_bindgen::prelude::*;
 
@@ -16,6 +16,12 @@ pub fn represent_rgb(color: &str) -> Result<Box<[u8]>, errors::ColorError> {
     Ok(Box::new([srgb.red, srgb.green, srgb.blue]))
 }
 
+#[wasm_bindgen]
+pub fn rgb_to_hex(r: u8, g: u8, b: u8) -> Result<String, errors::ColorError> {
+    let srgb = Srgb::new(r, g, b);
+    Ok(format!("{:x}", srgb))
+}
+
 #[wasm_bindgen]
 pub fn represent_hsl(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     let origin_color = Srgb::from_str(color)
@@ -29,6 +35,16 @@ pub fn represent_hsl(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     ]))
 }
 
+#[wasm_bindgen]
+pub fn hsl_to_hex(h: f32, s: f32, l: f32) -> Result<String, errors::ColorError> {
+    let hsl = Hsl::new(h, s, l);
+    let srgb = Srgb::from_color_unclamped(hsl);
+    if !srgb.is_within_bounds() {
+        return Err(errors::ColorError::ComponentOutOfBounds);
+    }
+    Ok(format!("{:x}", srgb.into_format::<u8>()))
+}
+
 #[wasm_bindgen]
 pub fn represent_lab(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     let origin_color = Srgb::from_str(color)
@@ -38,6 +54,16 @@ pub fn represent_lab(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     Ok(Box::new([lab.l, lab.a, lab.b]))
 }
 
+#[wasm_bindgen]
+pub fn lab_to_hex(l: f32, a: f32, b: f32) -> Result<String, errors::ColorError> {
+    let lab = Lab::new(l, a, b);
+    let srgb = Srgb::from_color_unclamped(lab);
+    if !srgb.is_within_bounds() {
+        return Err(errors::ColorError::ComponentOutOfBounds);
+    }
+    Ok(format!("{:x}", srgb.into_format::<u8>()))
+}
+
 #[wasm_bindgen]
 pub fn represent_oklch(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     let origin_color = Srgb::from_str(color)
@@ -51,6 +77,16 @@ pub fn represent_oklch(color: &str) -> Result<Box<[f32]>, errors::ColorError> {
     ]))
 }
 
+#[wasm_bindgen]
+pub fn oklch_to_hex(l: f32, c: f32, h: f32) -> Result<String, errors::ColorError> {
+    let lch = Oklch::new(l, c, h);
+    let srgb = Srgb::from_color_unclamped(lch);
+    if !srgb.is_within_bounds() {
+        return Err(errors::ColorError::ComponentOutOfBounds);
+    }
+    Ok(format!("{:x}", srgb.into_format::<u8>()))
+}
+
 #[wasm_bindgen]
 pub fn shift_hue(color: &str, degree: f32) -> Result<String, errors::ColorError> {
     let origin_color = Srgb::from_str(color)
@@ -146,3 +182,91 @@ pub fn wacg_relative_contrast(fg_color: &str, bg_color: &str) -> Result<f32, err
         .into_format::<f32>();
     Ok(fg_srgb.relative_contrast(bg_srgb))
 }
+
+#[wasm_bindgen]
+pub fn analogous_30(color: &str) -> Result<Vec<String>, errors::ColorError> {
+    let origin_color = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<f32>();
+    let oklch = Oklch::from_color(origin_color);
+    let (color_n30, color_p30) = oklch.analogous();
+    let srgb_n30 = Srgb::from_color(color_n30);
+    let srgb_p30 = Srgb::from_color(color_p30);
+    Ok(vec![
+        format!("{:x}", srgb_n30.into_format::<u8>()),
+        format!("{:x}", srgb_p30.into_format::<u8>()),
+    ])
+}
+
+#[wasm_bindgen]
+pub fn analogous_60(color: &str) -> Result<Vec<String>, errors::ColorError> {
+    let origin_color = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<f32>();
+    let oklch = Oklch::from_color(origin_color);
+    let (color_n60, color_p60) = oklch.analogous_secondary();
+    let srgb_n60 = Srgb::from_color(color_n60);
+    let srgb_p60 = Srgb::from_color(color_p60);
+    Ok(vec![
+        format!("{:x}", srgb_n60.into_format::<u8>()),
+        format!("{:x}", srgb_p60.into_format::<u8>()),
+    ])
+}
+
+#[wasm_bindgen]
+pub fn complementary(color: &str) -> Result<String, errors::ColorError> {
+    let origin_color = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<f32>();
+    let oklch = Oklch::from_color(origin_color);
+    let complementary_color = oklch.complementary();
+    let srgb = Srgb::from_color(complementary_color);
+    Ok(format!("{:x}", srgb.into_format::<u8>()))
+}
+
+#[wasm_bindgen]
+pub fn split_complementary(color: &str) -> Result<Vec<String>, errors::ColorError> {
+    let origin_color = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<f32>();
+    let oklch = Oklch::from_color(origin_color);
+    let (color_p150, color_p210) = oklch.split_complementary();
+    let srgb_p150 = Srgb::from_color(color_p150);
+    let srgb_p210 = Srgb::from_color(color_p210);
+    Ok(vec![
+        format!("{:x}", srgb_p150.into_format::<u8>()),
+        format!("{:x}", srgb_p210.into_format::<u8>()),
+    ])
+}
+
+#[wasm_bindgen]
+pub fn tetradic(color: &str) -> Result<Vec<String>, errors::ColorError> {
+    let origin_color = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<f32>();
+    let oklch = Oklch::from_color(origin_color);
+    let (color_p90, color_p180, color_p270) = oklch.tetradic();
+    let srgb_p90 = Srgb::from_color(color_p90);
+    let srgb_p180 = Srgb::from_color(color_p180);
+    let srgb_p270 = Srgb::from_color(color_p270);
+    Ok(vec![
+        format!("{:x}", srgb_p90.into_format::<u8>()),
+        format!("{:x}", srgb_p180.into_format::<u8>()),
+        format!("{:x}", srgb_p270.into_format::<u8>()),
+    ])
+}
+
+#[wasm_bindgen]
+pub fn triadic(color: &str) -> Result<Vec<String>, errors::ColorError> {
+    let origin_color = Srgb::from_str(color)
+        .map_err(|_| errors::ColorError::UnrecogniazedRGB(color.to_string()))?
+        .into_format::<f32>();
+    let oklch = Oklch::from_color(origin_color);
+    let (color_p120, color_p240) = oklch.triadic();
+    let srgb_p120 = Srgb::from_color(color_p120);
+    let srgb_p240 = Srgb::from_color(color_p240);
+    Ok(vec![
+        format!("{:x}", srgb_p120.into_format::<u8>()),
+        format!("{:x}", srgb_p240.into_format::<u8>()),
+    ])
+}