culori

Culori are perceptual attributes of light that humans interpret as different hues, combined with saturation and brightness. In everyday use, culori cover a spectrum of colors visible to the eye, typically described by names such as red, blue, and green, with many tints and tones produced by varying saturation and lightness. Wavelengths of visible light range roughly from 380 to 750 nanometers, though perceived color depends on context and illumination.

Color perception relies on the eye's photoreceptors, especially three types of cones sensitive to long, medium, and short wavelengths. This trichromatic input combines to form color, while neural processing includes opponent-process mechanisms that influence color discrimination and color constancy under changing illumination.

Color models organize culori for digital and print workflows. Additive RGB models describe colors produced by light; subtractive CMYK models describe inks. Other spaces include HSL and HSV, which separate hue, saturation, and lightness or value. Device-independent spaces such as CIE L*a*b* help compare colors across devices and media.

Mixing culori follows different rules: light mixes additively, yielding brighter colors; pigments mix subtractively, often using cyan, magenta, and yellow as primaries with black added in printing. Real-world appearance depends on illumination, surrounding colors, and surface properties.

Cultural and practical aspects of culori include symbolism that varies by culture and context. In design, ensuring accessible color contrast for people with color-vision deficiencies is standard, alongside color management to maintain consistency across devices.