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Rugged Fjord

#0c9c5b
Notes

Rugged Fjord (#0C9C5B) is a deep teal 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 (153°, 86%, 33%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0c9c5b
RGB
rgb(12, 156, 91)
HSL
hsl(153, 86%, 33%)
HWB
hwb(153 5% 39%)
OKLCH
oklch(61.0% 0.147 155.4)
P3
color(display-p3 0.2763 0.6026 0.3802)
HSV
hsv(153, 92%, 61%)
LAB
lab(56.69% -49.73 24.60)
LCH
lch(56.69% 55.48 153.68)
CMYK
cmyk(92%, 0%, 42%, 39%)

Etymology

Rugged
adjective

Old Norse rugga, rough / coarse — adjectival suffix -ed. As a color modifier, rugged implies a saturated-and-rough-and-weathered quality, the deep-rich color of Scottish-Highlands-and-Norwegian-fjord outdoor-and-mountain landscape. Sits at the bold-and-weathered end of the grid, parallel to tough and sinewy in usage.

Fjord
noun

The deep glacier-carved coastal inlets of Norway, Iceland, New Zealand, and Patagonia — formed during the Pleistocene as ice sheets retreated and seawater flooded the glacial valleys. Fjord color refers to mid-depth Norwegian fjord water at Geirangerfjord: a deep, slightly cool deep blue-green with the optical complexity of glacier-melt water mixed with cold seawater.

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.

#0c9c5b
Original
#9b8e56
Protanopia
#8c845f
Deuteranopia
#009a8c
Tritanopia
#797979
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).
AA Largeon White
3.55:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.92:1

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
##0C9C5B
Display P3
Display P3
color(display-p3 0.2763 0.6026 0.3802)
P3 has subtle headroomOKLCH chroma 0.147

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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