Tertiary color if they exist at all, though indigo and scarlet are standard for blue–violet and red–vermilion. In another sense, a tertiary color is obtained by mixing secondary-colored pigments. These three colors are russet (orange–purple), slate (purple–green), and citron (green–orange), with the corresponding three quaternary colors plum (russet–slate), sage (slate–citron), buff (citron–russet) (with olive sometimes used for either slate or citron). Beyond that are shades of grey (blue grey and brown greys), which approach but never quite reach black. The RYB color terminology outlined above and in the color samples shown below is ultimately derived from the 1835 book "Chromatography", an analysis
Blue Is the Warmest Colour Blue Is the Warmest Colour Blue Is the Warmest Colour (; ), known as Blue Is the Warmest Color in the United States, is a 2013 French romance film co-written, co-produced, and directed by Abdellatif Kechiche, and starring Léa Seydoux and Adèle Exarchopoulos. The film follows Adèle (Exarchopoulos), a French teenager who discovers desire and freedom when an aspiring painter (Seydoux) enters her life. The film charts their relationship from Adele's high school years to her early adult life and career as a school teacher. The premise of "Blue Is the Warmest Colour" is based on the 2010 graphic novel