use inGamut culori func

lib/colors.ts

@@ -2,6 +2,7 @@ import {
   type Color,
   formatCss,
   formatRgb as formatRgbFast,
+  inGamut,
   type Lch,
   type Lrgb,
   modeHsl,
@@ -41,44 +42,9 @@ export let lab = useMode(modeLab)
 export let lrgb = useMode(modeLrgb)
 export let p3 = useMode(modeP3)
 
-const GAMUT_MIN = -GAMUT_EPSILON
-const GAMUT_MAX = 1 + GAMUT_EPSILON
-
-export function inRGB(color: Color): boolean {
-  let { b, g, r } = rgb(color)
-  return (
-    r >= GAMUT_MIN &&
-    r <= GAMUT_MAX &&
-    g >= GAMUT_MIN &&
-    g <= GAMUT_MAX &&
-    b >= GAMUT_MIN &&
-    b <= GAMUT_MAX
-  )
-}
-
-export function inP3(color: Color): boolean {
-  let { b, g, r } = p3(color)
-  return (
-    r >= GAMUT_MIN &&
-    r <= GAMUT_MAX &&
-    g >= GAMUT_MIN &&
-    g <= GAMUT_MAX &&
-    b >= GAMUT_MIN &&
-    b <= GAMUT_MAX
-  )
-}
-
-export function inRec2020(color: Color): boolean {
-  let { b, g, r } = rec2020(color)
-  return (
-    r >= GAMUT_MIN &&
-    r <= GAMUT_MAX &&
-    g >= GAMUT_MIN &&
-    g <= GAMUT_MAX &&
-    b >= GAMUT_MIN &&
-    b <= GAMUT_MAX
-  )
-}
+export const inRGB = inGamut('rgb')
+export const inP3 = inGamut('p3')
+export const inRec2020 = inGamut('rec2020')
 
 export function build(l: number, c: number, h: number, alpha = 1): AnyLch {
   return { alpha, c, h, l, mode: COLOR_FN }