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Drowned Surf

#0c303f
Notes

Drowned Surf (#0C303F) is a deep cyan 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 (198°, 68%, 15%) 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
#0c303f
RGB
rgb(12, 48, 63)
HSL
hsl(198, 68%, 15%)
HWB
hwb(198 5% 75%)
OKLCH
oklch(29.1% 0.048 229.6)
P3
color(display-p3 0.0881 0.1853 0.2413)
HSV
hsv(198, 81%, 25%)
LAB
lab(18.15% -6.76 -13.14)
LCH
lch(18.15% 14.78 242.78)
CMYK
cmyk(81%, 24%, 0%, 75%)

Etymology

Drowned
adjective

The past participle of drown — used as a color word principally in literary contexts for the dark blue-green of deep water and the muted browns of waterlogged earth. Drowned implies darkness with the optical complexity of a fluid medium absorbing and scattering light. Sits in the deep-and-cool quadrant, near sunken.

Surf
noun

The white water produced where waves break — bubbles of compressed air carried in shallow water and dispersing as the wave reforms. The color refers to surf retreating across wet sand: a soft, very pale blue-green with the optical brightness of bubble dispersion. Lighter than seafoam, cooler than frost, with the kinetic weight of a color that's never still — every photograph of surf is already obsolete.

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.

#0c303f
Original
#282f40
Protanopia
#212a3f
Deuteranopia
#003435
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
13.91:1
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
1.51:1

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
##0C303F
Display P3
Display P3
color(display-p3 0.0881 0.1853 0.2413)
Inside sRGBOKLCH chroma 0.048

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.

Related Colors

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