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Hoary Selkie

#37554e
Notes

Hoary Selkie (#37554E) 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 (166°, 21%, 27%) places it in the muted 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
#37554e
RGB
rgb(55, 85, 78)
HSL
hsl(166, 21%, 27%)
HWB
hwb(166 22% 67%)
OKLCH
oklch(42.4% 0.038 178.1)
P3
color(display-p3 0.2415 0.3302 0.3067)
HSV
hsv(166, 35%, 33%)
LAB
lab(33.69% -12.91 0.54)
LCH
lch(33.69% 12.92 177.61)
CMYK
cmyk(35%, 0%, 8%, 67%)

Etymology

Hoary
adjective

Old English hār, gray-haired — adjectival suffix -y. As a color modifier, hoary implies a hushed-and-gray-aged-and-frosted quality where the hue carries the visual register of gray-haired-and-frosted multi-decade aged-and-respected period-correct color. Sits at the hushed-and-aged end of the grid, parallel to aged and frosted in usage.

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.

#37554e
Original
#53524e
Protanopia
#4d4e4f
Deuteranopia
#2e5653
Tritanopia
#4e4e4e
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
8.17:1
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
2.57:1

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
##37554E
Display P3
Display P3
color(display-p3 0.2415 0.3302 0.3067)
Inside sRGBOKLCH chroma 0.038

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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