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Dark Blue Color coordinates; Hex triplet #00008B: sRGB B (r, g, b) (0, 0, 139) HSV (h, s, v) (240°, 100%, 55%) CIELCh uv (L, C, h) (15, 60, 266°) Source: X11: ISCC–NBS descriptor: Vivid blue: B: Normalized to [0–255] (byte)
Navy blue is a dark shade of the color blue. French sailor in dark blue uniform. Navy blue got its name from the dark blue (contrasted with naval white) worn by officers in the Royal Navy since 1748 and subsequently adopted by other navies around the world.
Blue Sapphire Color coordinates; Hex triplet #126180: sRGB B (r, g, b) (18, 97, 128) HSV (h, s, v) (197°, 86%, 50%) CIELCh uv (L, C, h) (38, 40, 232°) Source: Pantone TPX: ISCC–NBS descriptor: Dark greenish blue: B: Normalized to [0–255] (byte)
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 .
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 ...
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).
Yale Blue is the dark blue color used in association with Yale University. History [ edit ] The flag in this painting of the Yale 1859 crew team is believed to be the first documented Yale Blue, though the photograph is in black and white.
Persian blue comes in three major tones: Persian blue proper: a bright medium blue; medium Persian blue (a medium slightly grayish blue that is slightly indigoish); and a kind of dark blue which is referred to as Persian indigo, dark Persian blue, or regimental, that is much closer to the web color indigo.
Indigo dye is a dark blue crystalline powder that sublimes at 390–392 °C (734–738 °F). It is insoluble in water, alcohol , or ether , but soluble in DMSO , chloroform , nitrobenzene , and concentrated sulfuric acid .
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.
