CIE 1931 xy Chromaticity Diagram — comparing achievable color ranges of three professional watercolor brands
Each dot is a pigment plotted by its chromaticity coordinates. Outlined shapes show the convex hull (maximum gamut boundary) for each brand. The sRGB triangle (white dashed) is shown for reference — all pigments defined by hex values fall within it. Larger gamut area = wider range of reproducible hues.