export declare const fromHSVA: (hsva: HSVA) => HSLA

export declare const fromLCh: (a_0: LCh) => HSLA

export declare const fromLab: (a_0: Lab.Lab) => HSLA

export declare const fromRGBA: (rgba: RGBA.RGBA) => HSLA

export declare const fromXYZ: (a_0: XYZ.XYZ) => HSLA

export declare const hsl: (h: number, s: number, l: number) => HSLA

export declare const hsla: (h: number, s: number, l: number, a: number) => HSLA

export declare const toCSS: (c: HSLA) => string

export interface HSLA {
  /**
   * A number between `0` and `360` representing the hue of the color in degrees.
   */
  readonly h: Hue.Hue

  /**
   * A number between `0` and `1` representing the percent saturation of the color
   * where `0` is completely denatured (grayscale) and `1` is fully saturated (full color).
   */
  readonly s: number

  /**
   * A number between `0` and `1` representing the percent lightness of the color
   * where `0` is completely dark (black) and `1` is completely light (white).
   */
  readonly l: number

  /**
   * A number between `0` and `1` representing the opacity or transparency of the color
   * where `0` is fully transparent and `1` is fully opaque.
   */
  readonly a: number
}

export declare const alpha: (c: HSLA) => number

export declare const evolve: <
  F extends {
    readonly h: (a: Hue.Hue) => number
    readonly s: (a: number) => number
    readonly l: (a: number) => number
    readonly a: (a: number) => number
  }
>(
  transformations: F
) => (c: HSLA) => HSLA

export declare const mix: (ratio: number) => (a: HSLA) => (b: HSLA) => HSLA

export declare const rotateHue: (angle: number) => (c: HSLA) => HSLA

export declare const setAlpha: (alpha: number) => Endomorphism<HSLA>