MP Review

Ë white light = RGB light in equal amounts Ë color is a psycho – physical response Ë color is described in 3 ways: 1. hue 2. lightness 3. saturation Ë the human eye sees from 380 – 770 nm (NOT 400 – 700nm) ex./ 380__________550__________770 blue green red Ë theories of how color is seen: 1. psycho – physical theory: invented by Young Helmhotlz, the eye sees three colors of light – red, green, and blue – that are reflected from objects. * three types of vision: 2. trichromatic: sees all three colors 2. dichromatic: sees only two …

…RGB Ë colorants = pigments and dyes (always subtractive) Ë Munsell system of color * 5 main hues: Red, Yellow, Green, Blue, Purple * 10 major hues: R, RY, Y, YG, G, GB, B, BP, P, PR H every color comes from these 10 hues * 3 ways of talking about color for Munsell: 1. value: changes vertically and in increments of 1 2. chroma: changes horizontally and in increments of 2 3. saturation = value + chroma, changes diagonally colors named by their hue value/chroma (H V/C) Bibliography none