The scattered light produces the brightness and colour in clear skies. The scattered light produces the brightness and color in clear skies. Pastel refers to colors with high brightness and low saturation. Saturation is the colorfulness of a color relative to its own brightness. It is this scattered light that gives the surrounding sky its brightness and its color. Light from many different sources contains various colors, each with its own brightness or intensity. Hue, brightness or chroma, and value. Improvements in picture brightness and contrast can thus be obtained. Males lose some of the brightness of their color. Pluto's surface is quite varied, with large differences in both brightness and color. Fillers improve print quality, brightness and opacity. Panchromatic film renders all colors in shades of gray approximately matching their subjective brightness. Nix also appeared to vary in brightness and albedo, or reflectivity. Apparent magnitude is a logarithmic measure of apparent brightness. The SLR670a allows for additional shutter/brightness control.