export interface BrandRamp {
    /** Steps 1-12, index 0 is step 1. */
    solid: string[];
    /** Alpha twin of `solid` over a white background. */
    alpha: string[];
}
/**
 * Generates the 12-step brand ramp from a seed color. Step 9 is the seed itself, so primary
 * buttons render the tenant color literally.
 */
export declare function generateBrandRamp(seed: string): BrandRamp;
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