Light blue is a color or range of colors, typically a lightened shade with a hue between cyan and blue.
The first use of "light blue" as a color term in English is in the year 1915.
In Russian and some other languages, there is no single word for blue, but rather different words for light blue (голубой, goluboy) and dark blue (синий, siniy). The Ancient Greek word for a light blue, glaukos, also could mean light green, gray, or yellow.
In Modern Hebrew, light blue, tchelet (תכלת) is differentiated from blue, kachol (כחול). In Modern Greek, light blue, galazio (γαλάζιο) is also differentiated from blue, ble (μπλε).
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Variations
Light blue (Literal interpretation)
This shade is a literal light blue, or in other words, a simple combination of blue and white. It has the same hue as blue (240°) with less saturation in HSV or more lightness in HSL. The specific hex color #8080FF is also commonly used in 3D computer graphics as the base color for Normal mapping, in which it typically represents the smooth areas of the surface.
Light blue (Crayola)
Displayed at the right is the color that is called "light blue" in Crayola crayons. It was only available in 1958. Contrary to its title, it is technically a shade of cyan due to its hue of 180°.
Light blue (RYB)
Displayed at the right is the color that is called "light blue" in the RYB color model. It is a mixture of blue and white.
Light blue in human culture
Cartography
In historical atlases published in Germany, light blue is traditionally used as a color to represent Germany, as opposed to pink for England, purple for France, and light green for Russia.
Heraldry and flags
Bleu celeste (sky blue) is a non-standard tincture in heraldry and vexillology.
The national flags of Argentina, the Bahamas, Botswana, Fiji, Guatemala, Honduras, Kazakhstan, Micronesia, Palau, Somalia, and Tuvalu all have light blue as a dominant color.
Gender
In modern Western culture, gender norms for colours are that light blue is commonly used to represent boys as opposed to the color pink, which is used to represent girls (but see the counterexamples at List of historical sources for pink and blue as gender signifiers).
Interior design
The color light blue is commonly regarded as calming and relaxing. Because of this, it is sometimes used to paint hospital rooms.
Since the color light blue reminds many people of water, light blue is a popular color for painting bathrooms or for porcelain bathroom fixtures.
School colors
Cambridge Blue is a shade of light blue adopted by the University of Cambridge, in contrast with the University of Oxford which has adopted a dark shade of blue (Oxford Blue).
Religion
In Hinduism, Shiva, the Destroyer, is depicted in light blue tones and is called neela kantha, or blue-throated, for having swallowed poison in an attempt to turn the tide of a battle between the gods and demons in the gods' favor.