Patent ID: 7808508

Claim:
A dental color system comprising primary colors and mixed colors, which are assigned coordinates in a CIElab color space, where the colors of natural teeth are situated on coordinates within an ellipsoid-shaped space, which has an assigned longitudinal, wherein the primary colors consist essentially of first primary colors and at least one group of second primary colors, the coordinates of the first primary colors being located on a longitudinal axis of the ellipsoid-shaped space or on a base line extending from light to dark in the CIElab space, the coordinates of at least one said group of second primary colors are located on a plane that perpendicularly intersects the longitudinal axis or base line, and the coordinates of the mixed colors are intersection points of first and second straight lines, whereby at least one straight line extends in parallel to the longitudinal axis or base line and a respective second straight line connects the coordinates of one of the first primary colors and one of the second primary colors.