Red Contrast

Contrast (vision)

Contrast is the difference in luminance or color that makes an object distinguishable from a background. Human vision is more sensitive to relative differences than to absolute luminance, so perceived appearance can remain fairly stable despite large changes in illumination.

Red

Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–750 nanometers. It is a primary color in the RGB color model and a secondary color in the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy.

red

Noun

1. The color of the setting sun, blood, and strawberries; the color which is evoked by the longest visible wavelengths (between about 625–740 nm), and a primary additive color.
2. A revolutionary socialist or (most commonly) a Communist; a Bolshevik, a supporter of the Bolsheviks in the Russian Civil War.

Adjective

1. Of a red hue.
2. Having an orange-brown or orange-blond colour; ginger.

contrast

Noun

1. A difference in lightness, brightness or hue between two colours that makes them more or less distinguishable.

Verb

1. To set in opposition in order to show the difference or differences between; to counterpoint.
2. To form a contrast.