Sky blue
 
Common connotations
boys, daylight, water, air, paleness
About these coordinates     Colour coordinates
Hex triplet#87CEEB
sRGBB (r, g, b)(135, 206, 235)
HSV (h, s, v)(197°, 43%, 92%)
CIELChuv (L, C, h)(79, 46, 223°)
SourceX11 color names
ISCC–NBS descriptorVery light greenish blue
B: Normalized to [0–255] (byte)

Sky blue refers to a collection of shades comparable to that of a clear daytime sky.[1] 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.[1] A 1585 translation of Nicolas de Nicolay's 1576 Les navigations, peregrinations et voyages faicts en la Turquie includes "the tulbant [turban] of the merchant must be skie coloured".[2]

Bright blue sky with clouds
Bright blue sky with clouds

Displayed at right is the web colour sky blue.

Variations

Celeste

For other uses, see Celeste.

Celeste
 
About these coordinates     Colour coordinates
Hex triplet#B2FFFF
sRGBB (r, g, b)(178, 255, 255)
HSV (h, s, v)(180°, 30%, 100%)
CIELChuv (L, C, h)(95, 38, 192°)
SourceS.Fantetti e C.Petracchi (2001).
Il dizionario dei colori:
nomi e valori in quadricromia
.
Zanichelli. ISBN 8808079953.
ISCC–NBS descriptorVery light bluish green
B: Normalized to [0–255] (byte)

Celeste (Spanish: [θeˈleste, se-], Italian: [tʃeˈlɛste], 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.[3] In English, this colour may also be referred to as Italian sky blue (blu cielo italiano)[4][5][6][7][8] and Bianchi Green, referring to Bianchi, the famous italian company for bikes, the first in the history of vehicles, whose color is caracteristic.[9][10] The Japanese equivalent is known as sora iro or mizuiro, referring to the colour of the sky or its reflection on the sea.[11] There is also another conventional celeste,[12] a gradation between blue and cyan.

Celeste, that is, the pure Celeste strictly speaking (RGB 178,255,255; HEX #B2FFFF)[13] 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's possible to see Celeste and its variations[14][15][16][17] 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,[18] 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's 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,[12] 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[19][20] 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's 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.

Excellent examples of the presence of pure celeste in the direction of the sun are represented by these videos in Acapulco,[1] Santa Monica Beach and Venice Beach[2][3] on Youtube on sunny afternoons.

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.[21]

Gradations

The Italian Wikipedia 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.[22]

colour name C M Y K R G B HEX
  celeste (sky blue, heavenly blue, italian sky blue, bianchi green) 030 000 000 000 178 255 255 B2FFFF
  celeste polvere powdery 010 000 000 000 230 255 255 E6FFFF
  celeste pallido (pale) 016 000 003 000 204 255 255 CCFFFF
  celeste velato Veiler overcast 020 010 010 000 204 230 230 CCE6E6
  celeste opaco opaque 050 020 020 000 128 204 204 80CCCC

Light sky blue

Light sky blue
 
About these coordinates     Colour coordinates
Hex triplet#87CEFA
sRGBB (r, g, b)(135, 206, 250)
HSV (h, s, v)(203°, 46%, 98%)
CIELChuv (L, C, h)(80, 55, 233°)
SourceX11 color names
ISCC–NBS descriptorBrilliant greenish blue
B: Normalized to [0–255] (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
 
About these coordinates     Colour coordinates
Hex triplet#80DAEB
sRGBB (r, g, b)(128, 218, 235)
HSV (h, s, v)(190°, 46%, 92%)
CIELChuv (L, C, h)(82, 46, 210°)
SourceCrayola
ISCC–NBS descriptorVery light greenish blue
B: Normalized to [0–255] (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
 
About these coordinates     Colour coordinates
Hex triplet#00CCFF
sRGBB (r, g, b)(0, 204, 255)
HSV (h, s, v)(192°, 100%, 100%)
CIELChuv (L, C, h)(76, 78, 226°)
SourceCrayola C.P.
ISCC–NBS descriptorBrilliant greenish blue
B: Normalized to [0–255] (byte)

Displayed at right is the colour vivid sky blue.

Deep sky blue

Deep sky blue
 
About these coordinates     Colour coordinates
Hex triplet#00BFFF
sRGBB (r, g, b)(0, 191, 255)
HSV (h, s, v)(195°, 100%, 100%)
CIELChuv (L, C, h)(73, 83, 234°)
SourceX11
ISCC–NBS descriptorBrilliant greenish blue
B: Normalized to [0–255] (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.[23]

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.[24]

Sky-blue waters of the Blue Grotto in Capri
Deep sky blue waters of the Blue Grotto in Capri, namesake of the original (and ongoing) name for this colour

French sky blue

French sky blue
 
About these coordinates     Colour coordinates
Hex triplet#77B5FE
sRGBB (r, g, b)(119, 181, 254)
HSV (h, s, v)(212°, 53%, 100%)
CIELChuv (L, C, h)(72, 74, 247°)
SourcePourpre.com
ISCC–NBS descriptorBrilliant blue
B: Normalized to [0–255] (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
 
About these coordinates     Colour coordinates
Hex triplet#00AAE4
sRGBB (r, g, b)(0, 170, 228)
HSV (h, s, v)(195°, 100%, 89%)
CIELChuv (L, C, h)(65, 75, 234°)
SourceGallego and Sanz[25]
ISCC–NBS descriptorBrilliant greenish blue
B: Normalized to [0–255] (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
 
About these coordinates     Colour coordinates
Hex triplet#8CBED6
sRGBB (r, g, b)(140, 190, 214)
HSV (h, s, v)(199°, 35%, 84%)
CIELChuv (L, C, h)(74, 36, 225°)
Source[26]
ISCC–NBS descriptorLight greenish blue
B: Normalized to [0–255] (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.[26]

In culture

Sports

See also

References

  1. ^ a b "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. ^ "11 Types of Celeste".
  5. ^ "Color #b2ffff : Celeste". ColorAbout. Retrieved 2024-01-30.
  6. ^ "Celeste color hex code is #B2FFFF". www.color-name.com. Retrieved 2024-01-30.
  7. ^ "Italian Sky Blue - Online Color Tools - PhotoKit.com". Italian Sky Blue - Online Color Tools - PhotoKit.com. Retrieved 2024-01-30.
  8. ^ "Italian Sky Blue color - Arteqo Consulting". www.arteqo.com. Retrieved 2024-01-30.
  9. ^ "Bianchi Green color hex code is #B2FFFF". www.color-name.com. Retrieved 2023-10-07.
  10. ^ "Celeste". Bianchi. Retrieved 2023-10-07.
  11. ^ "Colours in Japanese". Omniglot.
  12. ^ a b "#99cbff Hex Color Code". encycolorpedia.com. Retrieved 2024-01-31.
  13. ^ "Celeste - #B2FFFF - The Official Register of Color Names". color-register.org. Retrieved 2023-09-17.
  14. ^ "Light Light Blue - #CAFFFB - The Official Register of Color Names". color-register.org. Retrieved 2023-09-17.
  15. ^ "Really Light Blue - #D4FFFF - The Official Register of Color Names". color-register.org. Retrieved 2023-09-17.
  16. ^ "Pale Sky Blue color - #BDF6FE - The Official Register of Color Names". color-register.org. Retrieved 2024-01-28.
  17. ^ "Soft Sky Blue color - #C1F1FF - The Official Register of Color Names". color-register.org. Retrieved 2024-01-28.
  18. ^ 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.
  19. ^ Staff, Astronomy (2020-07-09). "In what part of the electromagnetic spectrum does the Sun emit energy?". Astronomy Magazine. Retrieved 2023-12-22.
  20. ^ Robert Lea (2022-10-24). "What color is the sun?". Space.com. Retrieved 2023-12-22.
  21. ^ Scott-Giles, C. W. (1958). Boutell's Heraldry (rev. ed.). London & New York: Frederick Warne & Co.
  22. ^ S.Fantetti e C.Petracchi (2001). Il dizionario dei colori: nomi e valori in quadricromia. Zanichelli. ISBN 8808079953.
  23. ^ 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.
  24. ^ Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Page 191
  25. ^ 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
  26. ^ a b "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.
  27. ^ "Manchester City". Historical Kits. Retrieved 19 November 2020.
  28. ^ "Coventry City". Historical Kits. Retrieved 26 May 2023.