Color triangle
![A 1775 color triangle by Tobias Mayer.](/Images/godic/202501/05/Lichtenberg_color_triangle_Tobias_Mayer_17750439.jpg")
![The sRGB color triangle, shown as a subset of x,y space, a chromaticity space based on CIE 1931 colorimetry](/Images/godic/202501/05/CIExy1931_srgb_gamut0439.png")
![](/Images/godic/202501/05/Color_top_18950439.png")
![](/Images/godic/202501/05/Maxwell_color_Triangle_Luckiesh_19210439.png")
A color triangle is an arrangement of colors within a triangle, based on the additive combination of three primary colors at its corners.
An additive color space defined by three primary colors has a chromaticity gamut that is a color triangle, when the amounts of the primaries are constrained to be nonnegative.