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Bleak Mar

#133a3c
Notes

Bleak Mar (#133A3C) is a deep cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (183°, 52%, 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#133a3c
RGB
rgb(19, 58, 60)
HSL
hsl(183, 52%, 15%)
HWB
hwb(183 7% 76%)
OKLCH
oklch(32.2% 0.043 199.9)
P3
color(display-p3 0.1170 0.2241 0.2330)
HSV
hsv(183, 68%, 24%)
LAB
lab(21.91% -12.81 -5.34)
LCH
lch(21.91% 13.88 202.64)
CMYK
cmyk(68%, 3%, 0%, 76%)

Etymology

Bleak
adjective

Old Norse bleikr, pale — sharing root with English bleach. As a color modifier, bleak implies a deep-and-cold-and-comfortless quality, the dark gray-pale of Yorkshire-Moors and Hebrides late-winter atmospheric-light. Sits at the deep-and-cool end of the grid, parallel to grim and bitter in atmospheric register.

Mar
noun

The Catalan and Spanish word for sea — used in Mar Menor (Spanish), Mar de la Tranquilidad, and the saturated blue-green of Iberian Mediterranean coast. The color refers to the Mar Cantábrico off northern Spain at sunset: a saturated, slightly cool deep blue-green with the optical depth of cold Atlantic water.

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.

#133a3c
Original
#36373c
Protanopia
#2f323c
Deuteranopia
#003c3a
Tritanopia
#323232
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
12.37:1
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
1.70:1

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
##133A3C
Display P3
Display P3
color(display-p3 0.1170 0.2241 0.2330)
Inside sRGBOKLCH chroma 0.043

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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