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Serviceable Skagerrak

#15b3b7
Notes

Serviceable Skagerrak (#15B3B7) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (181°, 79%, 40%) places it in the highly saturated band at a mid 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#15b3b7
RGB
rgb(21, 179, 183)
HSL
hsl(181, 79%, 40%)
HWB
hwb(181 8% 28%)
OKLCH
oklch(69.7% 0.116 197.7)
HSV
hsv(181, 89%, 72%)
LAB
lab(66.38% -34.84 -12.67)
LCH
lch(66.38% 37.07 199.98)
CMYK
cmyk(89%, 2%, 0%, 28%)

Etymology

Serviceable
adjective

Latin servītium, service — adjectival suffix -able. As a color modifier, serviceable implies a clear-and-fit-for-purpose-and-durable quality where the hue carries the visual register of long-lasting-and-functional everyday-use design. Sits at the crisp-and-functional end of the grid, parallel to practical and utilitarian in usage.

Skagerrak
noun

The strait between Norway, Denmark, and Sweden — connecting the North Sea to the Kattegat. Skagerrak color refers to mid-depth Skagerrak water at Skagen: a saturated, slightly cool deep blue-green with the optical complexity of brackish Scandinavian water at the boundary of two major sea basins.

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.

#15b3b7
Original
#a5aab8
Protanopia
#919bb8
Deuteranopia
#00bab4
Tritanopia
#929292
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).
Failon White
2.57:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
8.16:1

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