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The color defined as blue in the RGB color model, X11 blue, is the brightest possible blue that can be reproduced on a computer screen, and is the color named blue in X11. It is one of the three primary colors used in the RGB color space, along with red and green. The three additive primaries in the RGB color system are the three colors of light chosen such as to provide the maximum gamut of ...
Dark blue. B: Normalized to [0–255] (byte) Space cadet is one of the colors on the Resene Color List, [9] a color list widely popular in Australia and New Zealand. The color was formulated in 2007. This color is apparently a formulation of an impression of the color that cadets in space navy training would wear.
Sapphire is a saturated shade of blue, referring to the gemstone of the same name. Sapphire gems most commonly occur in a range of blue shades, although they can come in many different colors. Other names for variations of the color sapphire are blue sapphire or sapphire blue, shown below.
Midnight blue is a dark shade of blue named for its resemblance to the apparently blue color of a moonlit night sky around a full moon. Midnight blue is identifiably blue to the eye in sunlight or full-spectrum light, but can appear black under certain more limited spectra sometimes found in artificial lighting (especially early 20th-century ...
Blue is a color, the perception of which is evoked by light having a spectrum dominated by energy with a wavelength of roughly 440–490 nm. It is considered one of the additive primary colors .
Darker shades of blue include ultramarine, cobalt blue, navy blue, and Prussian blue; while lighter tints include sky blue, azure, and Egyptian blue (for a more complete list see the List of colours ).
Oxford Blue is the official colour of the University of Oxford. [1] The official Oxford branding guidelines set its definition as Pantone 282, equivalent to the hex code #002147. [2] With a hue code of 212, this colour is a very dark tone of azure .
Duke makes use of several shades of blue, with the official Duke blue, known as Duke Navy Blue, being the darkest of the official blues. [1] The dark blue is used on the official university seal, but a lighter shade of blue, known as Duke Royal Blue (Hex: #00539B), is used on the Iron Duke logo, the logo of Duke Athletics.
In 1901, this was amended to "dark blue of the shade known as the color of the University of Oxford", [4] although Oxford Blue, while only 2° different in hue, is now substantially darker than Yale Blue, with a brightness of 28% compared to Yale Blue's 42%.
This clustering results in a dark blue color that is the appearance of coarse Egyptian blue. Alternatively, fine-textured Egyptian blue consists of smaller clusters that are uniformly interspersed between the unreacted quartz grains and tends to be light blue in color. [13]
