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Cellared Bombay

#0a276c
Notes

Cellared Bombay (#0A276C) is a deep azure with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (222°, 83%, 23%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0a276c
RGB
rgb(10, 39, 108)
HSL
hsl(222, 83%, 23%)
HWB
hwb(222 4% 58%)
OKLCH
oklch(30.3% 0.125 263.4)
HSV
hsv(222, 91%, 42%)
LAB
lab(18.36% 19.15 -42.90)
LCH
lch(18.36% 46.98 294.06)
CMYK
cmyk(91%, 64%, 0%, 58%)

Etymology

Cellared
adjective

Latin cellārium, storehouse — past-participle of cellar. As a color modifier, cellared implies the deep-and-cool-and-architectural quality of Bordeaux-and-Burgundy wine-cellar underground stone-and-oak storage-chamber, with the patina of multi-decade barrel-aging-and-bottle-laying. Sits at the deep-and-architectural end of the grid, parallel to crypted with viticulture register.

Bombay
noun

The Indian city now officially named Mumbai — and the deep blue of the Bombay Sapphire gin bottle (made in Hampshire, England, despite the name). The color refers to a Bombay Sapphire gin bottle: a saturated, slightly cool deep blue with the high gloss of dyed glass.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

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Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#0a276c
Original
#00316e
Protanopia
#00286b
Deuteranopia
#003945
Tritanopia
#262626
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
13.82:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.52:1

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