Pharaoh cuttlefish they can show a mottled white and brown color, with a center circle of brown. The mechanism for color is the same in the Pharaoh cuttlefish as it is in other cuttlefish. This colour-changing function is produced by groups of red, yellow, brown, and black pigmented chromatophores above a layer of reflective blue and green tinted iridophores and leucophores, with up to 200 of these specialized pigment cells per square millimeter. These sacs of color are controlled by rings of muscle around the sac. The cuttlefish expands and contracts these muscle rings in order to show different colors. It is
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