import { colorPos, colorRGB } from './Types';
/**
 * Normalize the hexadecimal color Separate the head (#) and transform 3digits to 6
 * @param hex String of Color in hexadecimal format
 */
export declare function normalizeHex(hex: string): string;
/**
 * Transform an color string in hexadecimal to a rgb object
 * @param hex String of Color in hexadecimal format
 */
export declare function hexToRGb(hex: string): colorRGB;
/**
 * Transform an rgb object to a color string in hexadecimal
 * @param rgb object that represents a color in RGB
 */
export declare function rgbToHex(rgb: colorRGB): string;
/**
 * Calculate the intermediate color between two colors
 * @param hex1 String of first Color in hexadecimal format
 * @param hex2 String of second Color in hexadecimal format
 */
export declare function getIntermediateColor(hex1: string, hex2: string): string;
/**
 * Get a correct text color according to the contrast
 * @param hex String of the base Color in hexadecimal format
 */
export declare function getCorrectTextColor(hex: string): string;
/**
 * Generates an array of colors in hexadecimal format based on the base color list and the number of expected colors
 * @param gradientColors List of colors with their respective proportional position
 * @param size Expected number of colors generated
 */
export declare function createGradient(gradientColors: colorPos[], size?: number): string[];