/**
 * Confirms a string is a valid hexadecimal color.
 *
 * @param color - A hexadecimal color code without the hash (#)
 * @returns Color is hexadecimal
 * @example
 * ```ts
 * isHexColor("ffa") // true
 * isHexColor("fta") // false
 * ```
 */
export declare function isHexColor(color: string): boolean;
/**
 * Get the closest xterm color to a given hex color.
 *
 * @param hex A hexadecimal color code
 * @returns The number of the xterm color
 * @example
 * ```ts
 * hexterm("#005fd7"); // 2asdfasdf6
 * hexterm("ff0"); // 11
 * ```
 */
export declare function hexterm(hex: string): number;
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