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Submerged Konjō

#0a243b
Notes

Submerged Konjō (#0A243B) 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 (208°, 71%, 14%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0a243b
RGB
rgb(10, 36, 59)
HSL
hsl(208, 71%, 14%)
HWB
hwb(208 4% 77%)
OKLCH
oklch(25.4% 0.054 248.4)
P3
color(display-p3 0.0669 0.1389 0.2242)
HSV
hsv(208, 83%, 23%)
LAB
lab(13.48% -0.42 -17.66)
LCH
lch(13.48% 17.66 268.64)
CMYK
cmyk(83%, 39%, 0%, 77%)

Etymology

Submerged
adjective

Latin sub-mergere, to plunge under — past-participle of submerge. As a color modifier, submerged implies the cool, deep, slightly-shifted quality of a hue viewed through a layer of water or glass. Sits at the deep-and-cool end of the grid, parallel to drowned and sunken in usage.

Konjō
noun

Japanese konjō (紺青) — deep blue-azure, the saturated deep navy used in Edo-period samurai inner robes and Buddhist mandala backgrounds. Distinct from konpeki by its slightly cooler shift toward navy. The color refers to a konjō-dyed silk: a saturated, slightly cool dark blue with the satin finish of multi-bath dyed silk.

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.

#0a243b
Original
#1a253c
Protanopia
#13203b
Deuteranopia
#00292c
Tritanopia
#202020
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
15.81:1
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
1.33:1

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
##0A243B
Display P3
Display P3
color(display-p3 0.0669 0.1389 0.2242)
Inside sRGBOKLCH chroma 0.054

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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