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Smooth Selkie

#277759
Notes

Smooth Selkie (#277759) is a deep teal 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 (158°, 51%, 31%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#277759
RGB
rgb(39, 119, 89)
HSL
hsl(158, 51%, 31%)
HWB
hwb(158 15% 53%)
OKLCH
oklch(51.2% 0.091 164.5)
P3
color(display-p3 0.2464 0.4602 0.3569)
HSV
hsv(158, 67%, 47%)
LAB
lab(44.72% -31.87 9.53)
LCH
lch(44.72% 33.27 163.36)
CMYK
cmyk(67%, 0%, 25%, 53%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Selkie
noun

The seal-people of Celtic folklore — particularly Scottish, Irish, and Faroese mythology — beings who shed sealskin to take human form. Selkie color refers to the deep blue-green of Atlantic waters where the seal-folk are said to live: a deep, slightly cool deep blue-green with the optical complexity of cold Atlantic open 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.

#277759
Original
#756e57
Protanopia
#6a675b
Deuteranopia
#00776f
Tritanopia
#646464
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).
AAon White
5.43:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.87:1

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
##277759
Display P3
Display P3
color(display-p3 0.2464 0.4602 0.3569)
P3 has subtle headroomOKLCH chroma 0.091

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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