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Warm Pitted Kingfisher

#37a1ac
Notes

Warm Pitted Kingfisher (#37A1AC) is a true 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 (186°, 52%, 45%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#37a1ac
RGB
rgb(55, 161, 172)
HSL
hsl(186, 52%, 45%)
HWB
hwb(186 22% 33%)
OKLCH
oklch(65.4% 0.095 205.0)
P3
color(display-p3 0.3401 0.6228 0.6667)
HSV
hsv(186, 68%, 67%)
LAB
lab(61.03% -26.12 -14.53)
LCH
lch(61.03% 29.89 209.08)
CMYK
cmyk(68%, 6%, 0%, 33%)

Etymology

Warm
adjective

Old English wearm, of moderate heat — used as a color modifier since the medieval period for hues that read as containing red, orange, or yellow undertones. Warm gray, warm white: not necessarily a temperature, but the optical impression of a slight red-orange shift. Sits across the crisp and neutral buckets.

Pitted
modifier

Old English pyt, pit / hole. As a color modifier, pitted implies a small-hole-and-mark-pattern quality, the visual register of worn-and-pitted-stone-and-leather hand-worn-and-pitted stone-and-leather-and-metal worn-and-pitted-mark-and-hole surfaces under worn-and-pitted-stone-and-leather aged light. Sits at the modifier-and-texture end of the grid, parallel to mossed and limed in usage.

Kingfisher
noun

The family Alcedinidae — particularly Alcedo atthis, the European common kingfisher whose iridescent turquoise-blue plumage gives the color its name. The color refers to a male European kingfisher's wing: a saturated, slightly cool deep blue-green with the iridescent satin finish of structurally colored feathers.

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.

#37a1ac
Original
#949bad
Protanopia
#838eac
Deuteranopia
#00a8a4
Tritanopia
#8b8b8b
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
3.06:1
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
6.86:1

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
##37A1AC
Display P3
Display P3
color(display-p3 0.3401 0.6228 0.6667)
P3 has subtle headroomOKLCH chroma 0.095

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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