21. In chromaticity space, the gamut is a plane convex polygon with corners at the primaries. 22. The CIE 1931 xy chromaticity diagram. 23. However, the concept of color can be divided into two parts : brightness and chromaticity . 24. Also, the Abney effect does not disallow any and all straight lines on chromaticity diagrams. 25. Where the factor accounts for the two illuminants having the same chromaticity but different reference whites. 26. Two-dimensional depictions include chromaticity diagrams : sections of the color solid with a fixed lightness. 27. In other words, the chromaticity of white and grey are the same while their brightness differs. 28. Moving directly away from the vertex of this cone represents maintaining the same chromaticity while increasing its intensity. 29. On an xy chromaticity diagram the spectral locus if formed by all positive values of x and y. 30. The gamut of chromaticities that can be represented in sRGB is the color triangle defined by these primaries.
