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Brooding Aviator

#21318b
Notes

Brooding Aviator (#21318B) is a deep blue 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 (231°, 62%, 34%) 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
#21318b
RGB
rgb(33, 49, 139)
HSL
hsl(231, 62%, 34%)
HWB
hwb(231 13% 45%)
OKLCH
oklch(36.3% 0.150 269.4)
HSV
hsv(231, 76%, 55%)
LAB
lab(24.90% 26.95 -51.84)
LCH
lch(24.90% 58.43 297.47)
CMYK
cmyk(76%, 65%, 0%, 45%)

Etymology

Brooding
adjective

The adjectival use of brood in the sense of to dwell on — a gerund-as-modifier that describes mood more than reflectance. Used as a color word principally in art criticism since the late nineteenth century: brooding sky, brooding portrait. In the engine's adjective grid, brooding sits in the dark-and-quiet end where the hue is present but reads as withholding rather than presenting itself.

Aviator
noun

The deep slate-blue of military aviator uniforms and the matching tint of mid-century aviator sunglass lenses — a Bausch & Lomb design originally developed in 1937 for U.S. Army Air Corps pilots. The color refers to a USAF aviator dress jacket: a saturated, slightly muted deep gray-blue with the matte finish of regulation gabardine. Cooler than navy, deeper than slate.

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.

#21318b
Original
#00408e
Protanopia
#003689
Deuteranopia
#004859
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
11.19:1
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
1.88:1

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