/**
 * Converts a single color channel from the sRGB color space to linear.
 * @param c - The color channel to be converted.
 * @category Color
 */
export declare function SRGBToLinear(c: number): number;
/**
 * Converts a single color channel from the linear color space to sRGB.
 * @param c - The color channel to be converted.
 * @category Color
 */
export declare function LinearToSRGB(c: number): number;
/**
 * Creates an image data url from a color string.
 * @param color - color string (css compatible color)
 * @param width - width of the image (default: 1)
 * @param height - height of the image (default: 1)
 * @return data url
 * @category Color
 */
export declare function colorToDataUrl(color: string, width?: number, height?: number): string;
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