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Serene Orbit Mint

#81b4a0
Notes

Serene Orbit Mint (#81B4A0) 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 (156°, 25%, 61%) places it in the muted 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#81b4a0
RGB
rgb(129, 180, 160)
HSL
hsl(156, 25%, 61%)
HWB
hwb(156 51% 29%)
OKLCH
oklch(72.8% 0.061 168.4)
P3
color(display-p3 0.5484 0.7004 0.6317)
HSV
hsv(156, 28%, 71%)
LAB
lab(69.36% -21.12 4.81)
LCH
lch(69.36% 21.66 167.17)
CMYK
cmyk(28%, 0%, 11%, 29%)

Etymology

Serene
adjective

Latin serēnus, clear / unclouded. As a color modifier, serene implies a clear-and-untroubled quality where the hue carries the visual register of cloudless-bright-day atmospheric stability. Sits at the crisp-and-calm end of the grid, parallel to placid and untroubled in usage.

Orbit
modifier

Latin orbita, track-or-wheel-rut. As a color modifier, orbit implies a Keplerian-ellipse-and-circling quality, the visual register of Keplerian-ellipse-and-Newton-Principia-orbit hand-Keplerian-ellipse-and-circling Keplerian-ellipse-and-Newton-Principia-and-Tycho-orbit orbit-and-Keplerian-ellipse-and-circling surfaces under Keplerian-ellipse-and-Newton-Principia-and-Tycho-orbit Royal-Society-and-celestial-mechanics 17th-century-observation-light. Sits at the modifier-and-cosmic end of the grid, parallel to axis and parsec in usage.

Mint
noun

The genus Mentha — peppermint, spearmint, apple mint, water mint — the cooling herb whose menthol gives it that quality at the molecular level. The color refers to fresh peppermint leaves before drying: a clean, slightly cool green with the matte finish of trichome-rich leaf surface. Lighter than basil, cooler than parsley, with the mojito-and-Pimm's association of a herb tied to summer drinks across two continents.

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.

#81b4a0
Original
#b1ad9f
Protanopia
#a8a7a1
Deuteranopia
#75b5ae
Tritanopia
#a8a8a8
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
2.34:1
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
8.97:1

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
##81B4A0
Display P3
Display P3
color(display-p3 0.5484 0.7004 0.6317)
Inside sRGBOKLCH chroma 0.061

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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