This is an accepted version of this page In optics, orange has a wavelength between approximately 585 and 620 nm and a hue of 30° in HSV color space.

Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light.

The web color called orange is defined in CSS as the hex triplet FFA500.

Safety orange (also known as blaze orange, and a number of other names) was defined in ANSI standard Z535.1–1998 and is commonly used in a wide variety of contexts to warn of hazards, including: high-viz clothing, road cones, and as the background color in safety warning notices.

The tone of international orange used to paint the Golden Gate Bridge in San Francisco, California is slightly lighter than the standard International orange used by military contractors and in engineering (shown below), thus increasing its visibility to ships.

The web color papaya whip is a pale tint of orange.

The name of the color xanthous is derived from xantho (meaning yellow or golden), from the Ancient Greek ξανθός and "ous" (meaning full of), from the Latin adjectival suffix -ōsus.

[22][23] According to the university, this shade of orange is derived from the American daisy, which grew in profusion on the oldest part of the campus, The Hill.

The University of Tennessee colors are UT orange and white, and are used across its various sports teams, advertising, and merchandise.

[24] Spanish orange is the color that is called anaranjado (the Spanish word for the colour "orange") in the Guía de coloraciones (Guide to colorations) by Rosa Gallego and Juan Carlos Sanz, a color dictionary published in 2005 that is widely popular in the Hispanophone realm.

Allis-Chalmers tractors have been colored Persian orange since 1928 so that, even when caked with dirt, they could still be distinguished from landscape features.

[43][47] The National Hockey League's San Jose Sharks use burnt orange as a secondary color,[48] and it is one of three colors of the National Football League's Cleveland Browns.

This color was formulated by Crayola in 1994 as part of the Gem Tones set.

The first recorded use of brown as a color name in English was in about 1000 AD in the Metres of Boethius.

[54][55] Apricot Peach is a pale light grayish tangelo color.