In optics, orange has a wavelength between approximately 585 and 620 nm and a hue of 30° in HSV color space. In the RGB color space it is a secondary color numerically halfway between gamma-compressed red and yellow, as can be seen in the RGB color wheel. The complementary color of orange is azure. Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light.
Varieties of the color orange may differ in hue, chroma (also called saturation, intensity, or colorfulness) or lightness (or value, tone, or brightness), or in two or three of these qualities. Variations in value are also called tints and shades, a tint being an orange or other hue mixed with white, a shade being mixed with black. A large selection of these various colors is shown below.
brightness), or in two or three of these qualities. Variations in value are also called tints and shades, a tint being an orange or other hue mixed with white...
Shadesof brown can be produced by combining red, yellow, and black pigments, or by a combination oforange and black—illustrated in the color box. The...
tone, or brightness), or in two or three of these qualities. Variations in value are also called tints and shades, a tint being a yellow or other hue mixed...
century from the powdered mineral cinnabar (a form of mercury sulfide). It is synonymous with red orange, which often takes a modern form, but is 11% brighter...
variants of international orange. International Orange (Engineering) #BA160C International Orange (Golden Gate Bridge) #C0362C International Orange (Aerospace)...
to deep or strong yellow, generally on the darker side of this range. The first recorded use of old gold as a color name in English was in the early 19th...
of the additive primary colors. Brown colors are dark or muted shadesof reds, oranges, and yellows on the RGB and CMYK color schemes. In practice, browns...
Purple is the official color of Northwestern University. Additionally, there are shades and tints that are variations of the base color. Northwestern...
lighter shades can fade in sunlight. A cadmium yellow paint was frequently used on Bob Ross' TV show The Joy of Painting. In July 2023, the brilliance of cadmium...
a darker shade oforange. In the CMYK color model used in printing and painting, brown is usually made by combining the colors orange and black. In the...
Chrome orange is a mixed oxide with the chemical formula Pb2CrO5. It can be made by treating a lead(II) salt with an alkaline solution of a chromate or...
Safety orange (also known as blaze orange, vivid orange, OSHA orange, hunter orange, or Caltrans orange) is a hue used to set objects apart from their...
Variations of gray or grey include achromatic grayscale shades, which lie exactly between white and black, and nearby colors with low colorfulness. A...
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Color coordinates