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Sky blue
Common connotations
boys, daylight, water, air, paleness
Colour coordinates
Hex triplet	#87CEEB
sRGB (r, g, b)	(135, 206, 235)
HSV (h, s, v)	(197°, 43%, 92%)
CIELChuv (L, C, h)	(79, 46, 223°)
Source	X11 color names
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to (byte)

Sky blue refers to a collection of shades comparable to that of a clear daytime sky. Typically it is a shade of cyan or light teal, though some iterations are closer to light blue. The term (as "sky blew") is attested from 1681. A 1585 translation of Nicolas de Nicolay's 1576 Les navigations, peregrinations et voyages faicts en la Turquie includes "the tulbant of the merchant must be skie coloured".

Displayed at right is the web colour sky blue.

Variations

Celeste

Celeste
Colour coordinates
Hex triplet	#B2FFFF
sRGB (r, g, b)	(178, 255, 255)
HSV (h, s, v)	(180°, 30%, 100%)
CIELChuv (L, C, h)	(95, 38, 192°)
Source	S.Fantetti e C.Petracchi (2001). Il dizionario dei colori: nomi e valori in quadricromia. Zanichelli. ISBN 8808079953.
ISCC–NBS descriptor	Very light bluish green
B: Normalized to (byte)

Celeste (Template:IPA-es, Template:IPA-it, English: /sɪˈlɛst/) is the colloquial name for the pale turquoise blue colour. The same word, meaning "of the sky", is used in Spanish, Portuguese and Italian for the colour. Etymologically, it is derivated by Latin term caelestis, that means del cielo in Italian. There are two "conventional" colours denominated celeste, according to the color models. One is the pure Celeste, (HEX#B2FFFF; RGB 178,255,255) which may be referred as the "true" celeste as so understood traditionally; in English, this colour may also be referred to as Italian sky blue (blu cielo italiano) and Bianchi Green, referring to Bianchi, the famous italian company for bikes, the first in the history of vehicles, whose colour is caracteristic. The Japanese equivalent is known as sora iro or mizuiro, referring to the colour of the sky or its reflection on the sea. The other one is also another conventional celeste (HEX #99cbff and RGB 153,203,255) containing 100% of blue, associated to a more generic color of the sky and remembering a type of light zenithal blue and the next sky blue gradations.

Celeste, that is, the pure Celeste strictly speaking (HEX #B2FFFF; RGB 178,255,255) from here on (and which can be thought as the "true" or "conventional" celeste), is the colour of the sky with optimal visibility, when it is clear and sunny with an optimal quantity of humidity, absence of atmospheric dust, mist, haze, resulting in a good diffusion of light blue without saturation, which causes the prevalence of the white or of the warm colours of sunrise and sunset; in these excellent conditions, it is possible to see Celeste and its variations perpendicularly to the sun and toward the horizon, where the sky is illuminated directly and these shades merge with the golden light of solar rays and the white of the horizon, both in the morning and afternoon, when the star is high, relatively next to solar or true noon, or even across the entire region between the star and the horizon, in the latter case especially in the warm seasons, sometimes even until noon, depending by meteorological factors; generally, the higher the sun is during the day and the year, the less visible celeste and variations will be, until they are reduced to a few stripes on the horizon in the morning around the solar noon; in the afternoon, it is the opposite and celeste and similar gradations could be widely visible when the sun is high, but starting to go down, that is especially in the early afternoon hours and, naturally, in the warm seasons with a very high sun. Alternatively, other variants, like Celeste polvere, Pallido and Velato, are visible towards the horizon when the sun is near to the zenith, always with discrete or better conditions of visibility. In the afternoon, with good conditions, softer and less bright shades of celeste are visible at straight angle from north to south, until around sunset. In reality, it can be difficult to observe the pure celeste, being the color of a clear day with optimal meteorological factories; other shades of blue are often visible in the sky, as Light Sky Blue and similar gradations, among which the other conventional celeste, similar to the light blue sky colours rather than the pure celeste. One scientific explanation needs to be made: the sun emits light across the entire electromagnetic spectrum and so celeste, which is very close to the white with a RGB of 178,255,255, is very luminous, and so visible in the direction of the sun because it is there the maximum quantity of solar light, especially towards the horizon, even if human eyes can only perceive the visible light. Here because celeste and variations are easier to be visible in the warm seasons, spring and especially summer, with the optimization of solar light, hours of daylight and meteorological factors.

Being the gradation of near-perfectly sunny and clear sky, the color of an ideal sky, it is difficult to see pure celeste; instead, generically the sky shows the color of the other conventional celeste with 100% of blue, recalling a light zenithal blue and the next other types of sky blue; this is not surprising due to the best diffusion of the blue because of the Raylegh scattering.

Bleu celeste ("sky blue") is a rarely occurring tincture in heraldry (not being one of the seven main colours or metals or the three "staynard colours"). This tincture is sometimes also called ciel or simply celeste. It is depicted in a lighter shade than the range of shades of the more traditional tincture azure, which is the standard blue used in heraldry.

Gradations

The Italian Misplaced Pages cites Il dizionario dei colori: nomi e valori in quadricromia by S.Fantetti and C.Petracchi and describes multiple variants of celeste as shown below, plus details as defined in the infobox above.

Light sky blue

Light sky blue
Colour coordinates
Hex triplet	#87CEFA
sRGB (r, g, b)	(135, 206, 250)
HSV (h, s, v)	(203°, 46%, 98%)
CIELChuv (L, C, h)	(80, 55, 233°)
Source	X11 color names
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to (byte)

Displayed at right is the web colour light sky blue. It is close in shade to baby blue.

Medium sky blue

Medium sky blue
Colour coordinates
Hex triplet	#80DAEB
sRGB (r, g, b)	(128, 218, 235)
HSV (h, s, v)	(190°, 46%, 92%)
CIELChuv (L, C, h)	(82, 46, 210°)
Source	Crayola
ISCC–NBS descriptor	Very light greenish blue
B: Normalized to (byte)

Displayed at right is the colour medium sky blue. This is the colour that is called sky blue in Crayola crayons. This colour was formulated by Crayola in 1958.

"Sky blue" appears in the 32, 48, 64, 96 and 120 packs of crayons.

Vivid sky blue

Vivid sky blue
Colour coordinates
Hex triplet	#00CCFF
sRGB (r, g, b)	(0, 204, 255)
HSV (h, s, v)	(192°, 100%, 100%)
CIELChuv (L, C, h)	(76, 78, 226°)
Source	Crayola C.P.
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to (byte)

Displayed at right is the colour vivid sky blue.

Deep sky blue

Deep sky blue
Colour coordinates
Hex triplet	#00BFFF
sRGB (r, g, b)	(0, 191, 255)
HSV (h, s, v)	(195°, 100%, 100%)
CIELChuv (L, C, h)	(73, 83, 234°)
Source	X11
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to (byte)

Deep sky blue is an azure-cyan colour associated with deep shade of sky blue.

Deep sky blue is a web colour.

This is the colour on the colour wheel (RGB/HSV colour wheel) halfway between azure and cyan.

The colour name deep sky blue came into use with the formulization of the X11 colour names over 1985–1989.

The normalized colour coordinates for deep sky blue are identical to Capri, which first came into use as a colour name in English in 1920.

French sky blue

French sky blue
Colour coordinates
Hex triplet	#77B5FE
sRGB (r, g, b)	(119, 181, 254)
HSV (h, s, v)	(212°, 53%, 100%)
CIELChuv (L, C, h)	(72, 74, 247°)
Source	Pourpre.com
ISCC–NBS descriptor	Brilliant blue
B: Normalized to (byte)

At right is displayed the colour French sky blue, which is the tone of sky blue that is called sky blue (bleu ciel) in the Pourpre.com colour list, a colour list widely popular in France.

Spanish sky blue

Spanish sky blue
Colour coordinates
Hex triplet	#00AAE4
sRGB (r, g, b)	(0, 170, 228)
HSV (h, s, v)	(195°, 100%, 89%)
CIELChuv (L, C, h)	(65, 75, 234°)
Source	Gallego and Sanz
ISCC–NBS descriptor	Brilliant greenish blue
B: Normalized to (byte)

Spanish sky blue is the colour that is called celeste (the Spanish word for "sky blue") in the Guía de coloraciones (Guide to colourations) by Rosa Gallego and Juan Carlos Sanz, a colour dictionary published in 2005 that is widely popular in the Hispanophone realm.

Dark sky blue

Dark sky blue
Colour coordinates
Hex triplet	#8CBED6
sRGB (r, g, b)	(140, 190, 214)
HSV (h, s, v)	(199°, 35%, 84%)
CIELChuv (L, C, h)	(74, 36, 225°)
Source
ISCC–NBS descriptor	Light greenish blue
B: Normalized to (byte)

Displayed at right is the colour dark sky blue.

This is the colour called sky blue in Pantone.

The source of this colour is the "Pantone Textile Paper eXtended (TPX)" colour list, color #14-4318 TPX—Sky Blue.

In culture

Sports

• Argentina: Following the colours of the flag of Argentina, in which sky blue (celeste in Spanish) is the predominant colour, many Argentine sport teams feature the colour, including Racing Club de Avellaneda, Belgrano de Córdoba, Racing de Córdoba, Club Atlético Temperley, Atlético de Rafaela, Villa San Carlos, Gimnasia y Esgrima de Jujuy, Gimnasia y Tiro de Salta, and Gimnasia y Esgrima de Concepción del Uruguay. In addition, the Argentina national football team is known as the albicelestes due to the white-and-sky blue striping on their jerseys. This colour scheme is featured in other prominent national squads in popular sports such as rugby, field hockey, polo or volleyball.
• Australia: Sky blue is the main colour of the Australian rugby league team, New South Wales Blues, as it is the official colour of the state they represent.
• Formula One: The Benetton and its successor Renault team won the four drivers' and the constructors' World Championships of the squad with sky blue race cars, driven by Michael Schumacher at Benetton in 1994 and 1995 and Fernando Alonso at Renault in 2005 and 2006.
• Italy: Celeste is the main colour of the football teams Lazio of Rome and Napoli of Naples.
• Sweden: Football club Malmö FF, the club with the most Swedish championships, adopted sky blue shirts in 1920, which have been used for more than a century.
• United Kingdom: Two professional football clubs in England traditionally wear sky blue shirts. Manchester City adopted sky blue as the main colour of their home jersey in 1894 and have used that ever since then. Coventry City also have had sky blue as the primary colour since the 1960s.
• Uruguay: The Uruguay national football team has worn a sky blue jersey since 1910, after Uruguayan club team River Plate F.C. wore sky blue while defeating contemporary Argentine powerhouse Alumni Athletic Club. The national team is nicknamed La Celeste. As in Argentina, a number of Uruguayan club teams use sky blue in their uniforms, such as C.A. Cerro, Montevideo City Torque, Club Oriental de Football, and Rocha F.C.

See also

• Air Force blue
• Azure
• Bleu celeste (in heraldry)
• List of colours
• Marian blue
• Shades of blue
• RAL 5015 Sky blue

References

1. ^ "sky blue". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
2. Cited as 1585 in Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Page 204; Color Sample of Sky Blue: Page 89 Plate 33 Color Sample E6.
3. "Celeste | Etymology of the name Celeste by etymonline". www.etymonline.com. Retrieved 2024-01-22.
4. ^ "Celeste - #B2FFFF - The Official Register of Color Names". color-register.org. Retrieved 2023-09-17.
5. "11 Types of Celeste".
6. "Color #b2ffff : Celeste". ColorAbout. Retrieved 2024-01-30.
7. "Celeste color hex code is #B2FFFF". www.color-name.com. Retrieved 2024-01-30.
8. "Italian Sky Blue - Online Color Tools - PhotoKit.com". Italian Sky Blue - Online Color Tools - PhotoKit.com. Retrieved 2024-01-30.
9. "Italian Sky Blue color - Arteqo Consulting". www.arteqo.com. Retrieved 2024-01-30.
10. "Bianchi Green color hex code is #B2FFFF". www.color-name.com. Retrieved 2023-10-07.
11. "Celeste". Bianchi. Retrieved 2023-10-07.
12. "Colours in Japanese". Omniglot.
13. ^ "#99cbff Hex Color Code". encycolorpedia.com. Retrieved 2024-01-31.
14. ^ "Celeste / #99cbff Codice Colore Hex". encycolorpedia.it (in Italian). Retrieved 2024-02-29.
15. "Light Light Blue - #CAFFFB - The Official Register of Color Names". color-register.org. Retrieved 2023-09-17.
16. "Really Light Blue - #D4FFFF - The Official Register of Color Names". color-register.org. Retrieved 2023-09-17.
17. "Pale Sky Blue color - #BDF6FE - The Official Register of Color Names". color-register.org. Retrieved 2024-01-28.
18. "Soft Sky Blue color - #C1F1FF - The Official Register of Color Names". color-register.org. Retrieved 2024-01-28.
19. Naturally, the apparent height of the star from the Earth changes in the year with the four seasons, depending by the axial tilt of the planet respect to the Sun, so this is a general rule. Generically, what is said here for Celeste is valid for the regions between the equator and the two polar circles, including the temperate zones and subtropics. In these zones, the sun remains high enough throughout the year, especially in the warm seasons (spring, summer). Naturally, the closer you are to the equator the higher it will appear.
20. Staff, Astronomy (2020-07-09). "In what part of the electromagnetic spectrum does the Sun emit energy?". Astronomy Magazine. Retrieved 2023-12-22.
21. Robert Lea (2022-10-24). "What color is the sun?". Space.com. Retrieved 2023-12-22.
22. Scott-Giles, C. W. (1958). Boutell's Heraldry (rev. ed.). London & New York: Frederick Warne & Co.
23. S.Fantetti e C.Petracchi (2001). Il dizionario dei colori: nomi e valori in quadricromia. Zanichelli. ISBN 8808079953.
24. Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Color Sample of Capri: Page 93 Plate 35 Color Sample L7; The color Capri is shown as lying halfway between Cyan and Azure.
25. Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Page 191
26. Gallego, Rosa; Sanz, Juan Carlos (2005). Guía de coloraciones (Gallego, Rosa; Sanz, Juan Carlos (2005). Guide to Colorations) Madrid: H. Blume. ISBN 84-89840-31-8
27. ^ "PANTONE 14-4318 TPX Sky Blue". Pantone. Retrieved 19 December 2022. Displays a sky blue patch; exact rendering will depend upon the computer display used.
28. "Manchester City". Historical Kits. Retrieved 19 November 2020.
29. "Coventry City". Historical Kits. Retrieved 26 May 2023.

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• Shades of blue
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