The traditional type of color, as most people understand it, is based on pigmentation. Pigments achieve their color through absorbing and reflecting different wavelengths at different levels. Structural pigmentation takes a different approach. Different wavelengths are diffracted/reflected at different angles.…

One of 5 classes of visual Opsins in vertebrates, which includes the S-Opsin in humans. The peak wavelengths in this class range from 355-450nm and are therefore sometimes referred to as 'UV/Violet' cones, despite being the class of the humans'…

One of 5 classes of visual Opsins in vertebrates, to which humans possess none. They are present in most birds, fish and reptiles. In mammals, they are present only in monotremes (e.g. Platypus). The peak wavelengths in this class range…

A group of related conditions where stimulation of one "Cognitive/Sensor Pathway" can simultaneously stimulate a different once. Two types of common synesthesia that evoke color are: Grapheme–color Synesthesia is the most common form, where Letters and Numbers evoke colors.Chromesthesia, where…