export const hexToRGBA = (hex: string = '', alpha = 0.9) => { hex = hex.replace(/^#/, ''); const bigint = parseInt(hex, 16); const r = (bigint >> 16) & 255; const g = (bigint >> 8) & 255; const b = bigint & 255; return `rgba(${r}, ${g}, ${b}, ${alpha})`; };