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Gloomy Rocky

#0b2a7c
Notes

Gloomy Rocky (#0B2A7C) 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°, 84%, 26%) 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
#0b2a7c
RGB
rgb(11, 42, 124)
HSL
hsl(224, 84%, 26%)
HWB
hwb(224 4% 51%)
OKLCH
oklch(32.6% 0.143 264.0)
P3
color(display-p3 0.0774 0.1621 0.4676)
HSV
hsv(224, 91%, 49%)
LAB
lab(20.76% 23.81 -49.24)
LCH
lch(20.76% 54.69 295.81)
CMYK
cmyk(91%, 66%, 0%, 51%)

Etymology

Gloomy
adjective

Middle English gloumen, to look glum — adjectival suffix -y. As a color modifier, gloomy implies a deep-and-cool-and-overcast quality, the dark cool-gray of Yorkshire-Moors and Scottish-Highlands late-autumn atmospheric-overcast sky. Sits at the deep-and-cool end of the grid, parallel to sullen and somber.

Rocky
noun

The North American mountain range — and the saturated deep blue of Rocky Mountain alpine lakes (Bear Lake, Sapphire Lake, Lake Louise) at high altitude. Rocky refers to Sapphire Lake in Montana's Glacier National Park: a saturated, slightly cool deep blue with the optical clarity of glacier-fed alpine lake.

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

Click any swatch to explore

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.

#0b2a7c
Original
#00377f
Protanopia
#002d7a
Deuteranopia
#00404f
Tritanopia
#292929
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
12.83:1
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
1.64:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##0B2A7C
Display P3
Display P3
color(display-p3 0.0774 0.1621 0.4676)
P3 has subtle headroomOKLCH chroma 0.143

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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