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Healthful Pelt Turquoise

#40d1bf
Notes

Healthful Pelt Turquoise (#40D1BF) is a true teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (173°, 61%, 54%) 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
#40d1bf
RGB
rgb(64, 209, 191)
HSL
hsl(173, 61%, 54%)
HWB
hwb(173 25% 18%)
OKLCH
oklch(78.1% 0.123 183.0)
P3
color(display-p3 0.4306 0.8084 0.7493)
HSV
hsv(173, 69%, 82%)
LAB
lab(76.34% -42.01 -2.17)
LCH
lch(76.34% 42.06 182.96)
CMYK
cmyk(69%, 0%, 9%, 18%)

Etymology

Healthful
adjective

Old English hǣlth, health — adjectival suffix -ful. As a color modifier, healthful implies a clear-and-vital-and-wholesome quality where the hue carries the visual register of fresh-air-and-sunlight outdoor health-promoting environment. Sits at the crisp-and-wholesome end of the grid, parallel to salubrious and wholesome in usage.

Pelt
modifier

Old French pellete, small-skin. As a color modifier, pelt implies a fur-with-skin-and-hide quality, the visual register of fur-trapper-and-Hudson-Bay-Pelt hand-trapped-and-skinned beaver-and-otter-and-mink hand-trapped-fur-pelt-and-hide surfaces under Hudson-Bay-and-fur-trapper hand-trapped pelt-and-hide trading-post light. Sits at the modifier-and-texture end of the grid, parallel to hide and fur in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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.

#40d1bf
Original
#c7c5be
Protanopia
#b3b6c1
Deuteranopia
#00d5cb
Tritanopia
#b1b1b1
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
1.89:1
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
11.09:1

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
##40D1BF
Display P3
Display P3
color(display-p3 0.4306 0.8084 0.7493)
P3 has subtle headroomOKLCH chroma 0.123

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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