/**
 * A class representing RGBA colors.
 *
 * @hidden
 * @internal
 */
export declare class RGBA {
    r: number;
    g: number;
    b: number;
    a: number;
    /**
     * Parses a string describing a color.
     *
     * @param text - The string color literal
     */
    static parse(text: string): RGBA | undefined;
    /**
     * Constructs a [[RGBA]] color using the given components in the [0..1] range.
     */
    constructor(r?: number, g?: number, b?: number, a?: number);
    /**
     * Clones this [[RGBA]] color.
     */
    clone(): RGBA;
    /**
     * Returns this color encoded as one single number.
     */
    getHex(): number;
    /**
     * Linearly interpolate the components of this color.
     */
    lerp(target: RGBA, t: number): this;
    /**
     * Returns this color encoded as JSON literal.
     */
    toJSON(): string;
}
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