export declare function opacifyHex(hexCode: string, opacity: number): string;
/**
 * Converts HSL color values to Hex color string
 * @param h Hue (0-360)
 * @param s Saturation (0-100)
 * @param l Lightness (0-100)
 * @returns Hex color string (#RRGGBB)
 */
export declare function hslToHex(h: number, s: number, l: number): string;
/**
 * Safely gets a CSS variable and ensures it's in hex format
 * @param variableName CSS variable name (e.g. '--background')
 * @param fallbackColor Fallback color if the variable isn't found
 * @returns A color string in hex format
 */
export declare function getCssColor(variableName: string, fallbackColor: string): string;
/**
 * Gets a monospace font family from CSS variables or falls back to a system monospace font stack
 * @returns Monospace font family string suitable for code editors
 */
export declare function getMonospaceFont(): string;
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