In practice, azure has been represented by any number of shades of blue. In later heraldic practice a lighter blue, called bleu celeste ("sky blue"), is sometimes specified. Distinction among indigo, azure, and cyan According to the logic of the RGB color wheel, indigo colors are those colors with hue codes between 255 and 225 (degrees), azure colors are those colors with hue codes between 195 and 225, and cyan colors are those colors with hue codes between 165 and 195. Another way of describing it could be that cyan is a mixture of blue and green light, azure is a mixture of blue and cyan light, and indigo is a mixture of blue and violet light. All of the colors shown below in the section shades of azure are referenced as having a hue between 195 and 225 degrees, with the exception of the very pale X11 web color azure – RGB (240, 255, 255) – which, with a hue of 180 degrees, is a tone of cyan, but follows the artistic meaning of azure as sky blue. In nature Insects Azure bluet (Enallagma aspersum), damselfly found in North America Azure damselfly (Coenagrion puella), damselfly found in Europe Azure hawker (Aeshna caerulea), dragonfly in the family Aeshnidae Birds Azure gallinule (Porphyrio flavirostris), bird in the rail family, Rallidae Azure jay (Cyanocorax caeruleus) bird in the crow family, Corvidae Azure kingfisher (Alcedo azurea), bird in the river kingfisher family, Alcedinidae Azure tit (Cyanistes cyanus), bird in the tit family, Paridae Azure-crowned hummingbird (Amazilia cyanocephala), a hummingbird in the family Trochilidae Azure-hooded jay (Cyanolyca cucullata), bird in the crow family, Corvidae Azure-naped jay (Cyanocorax heilprini), bird in the crow family, Corvidae Azure-rumped tanager (Tangara cabanisi), bird in the family Thraupidae Azure-shouldered tanager (Thraupis cyanoptera), bird in the family Thraupidae Azure-winged magpie (Cyanopica cyana), bird in the crow family, Corvidae Plants Azure bluet (Houstonia caerulea), flower found in the eastern United States In culture Côte d'Azur ("Azure Coast") is a name commonly used for the French Riviera, part of France's southeastern coast on the Mediterranean. In Chinese mythology, the Azure Dragon is one of the Four Symbols of the Chinese constellations. It is sometimes called the Azure Dragon of the East (). Known as Seiryū in Japan and Cheongryong in Korea, it represents the east and the spring season. Savoy azure (azzurro Savoia) is a traditional national color for Italy, taken from