/**
 * Generates an HSL color value based on the input text.
 * @param {string} text The input text to generate the HSL color.
 * @param {number} [s] The saturation value (in percentage) for the HSL color.
 * @param {number} [l] The lightness value (in percentage) for the HSL color.
 * @returns {string} - The HSL color string in the format `hsl(h, s%, l%)`.
 * @description
 * This function computes a hash from the input text and uses it to generate
 * a hue value. The hue is combined with the provided saturation and lightness
 * values to create an HSL color. This can be useful for consistently assigning
 * colors based on text input, such as for avatars or tags.
 * @example
 * // Returns 'hsl(180, 40%, 65%)'
 * getHsl('example');
 * @example
 * // Returns 'hsl(300, 50%, 70%)'
 * getHsl('test', 50, 70);
 */
export function getHsl(text: string, s?: number, l?: number): string;
/**
 * Generates background and text HSL colors for avatars based on input text.
 * The text color is a darker, more saturated variant of the background color
 * to ensure sufficient contrast while keeping the same hue.
 * @param {string} text The input text (e.g. initials or name).
 * @returns {{ background: string, color: string }}
 */
export function getAvatarColors(text: string): {
    background: string;
    color: string;
};
/**
 * Generates initials from a given string.
 * @param {string} string The input string, typically a full name.
 * @param {number} [length] The desired number of initials (default is 2).
 * @returns {string} - The generated initials in uppercase.
 * @description
 * This function takes a string, splits it by spaces, and generates initials.
 * It always includes the first character of the first word. If the input string
 * contains more than one word and the `length` parameter is greater than 1, it
 * also includes the first character of the last word.
 * @example
 * // Returns 'JD'
 * getInitials('John Doe');
 * @example
 * // Returns 'J'
 * getInitials('John');
 * @example
 * // Returns 'JM'
 * getInitials('John Michael Doe', 2);
 */
export function getInitials(string: string, length?: number): string;