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Looming Admiralty

#15348b
Notes

Looming Admiralty (#15348B) 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 (224°, 74%, 31%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#15348b
RGB
rgb(21, 52, 139)
HSL
hsl(224, 74%, 31%)
HWB
hwb(224 8% 45%)
OKLCH
oklch(36.4% 0.149 264.7)
HSV
hsv(224, 85%, 55%)
LAB
lab(25.19% 23.66 -51.38)
LCH
lch(25.19% 56.56 294.73)
CMYK
cmyk(85%, 63%, 0%, 45%)

Etymology

Looming
adjective

Middle English lomen, to appear vaguely — present-participle of loom. As a color modifier, looming implies a deep-and-vague-and-imposing quality, the dark cool-gray of fog-veiled-and-distant cliff-or-mountain-mass against the sky. Sits at the deep-and-imposing end of the grid, parallel to imposing and towering.

Admiralty
noun

The British government department responsible for the Royal Navy from 1546 to 1964 — and the deep blue of Admiralty Blue paint specified for naval ship interiors and document covers. The color refers to an Admiralty-issue document folder: a saturated, slightly cool very deep blue with the matte finish of dyed institutional paper.

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.

#15348b
Original
#00418e
Protanopia
#003689
Deuteranopia
#004b5a
Tritanopia
#343434
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
11.08:1
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
1.90:1

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