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Healthful Court Verdigris

#55b8aa
Notes

Healthful Court Verdigris (#55B8AA) 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 (172°, 41%, 53%) 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
#55b8aa
RGB
rgb(85, 184, 170)
HSL
hsl(172, 41%, 53%)
HWB
hwb(172 33% 28%)
OKLCH
oklch(71.9% 0.095 183.1)
HSV
hsv(172, 54%, 72%)
LAB
lab(68.83% -32.41 -1.70)
LCH
lch(68.83% 32.46 183.00)
CMYK
cmyk(54%, 0%, 8%, 28%)

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.

Court
modifier

Old French cort, enclosed-yard. As a color modifier, court implies an enclosed-courtyard quality, the visual register of Inn-of-Court-and-Chinese-courtyard hand-built stone-and-tile-paved enclosed-and-formal courtyard-architecture surfaces under London-Inn-of-Court-and-Chinese-courtyard enclosed-formal architecture light. Sits at the modifier-and-place end of the grid, parallel to quad and yard in usage.

Verdigris
noun

The basic copper carbonate that forms on weathered copper and bronze — the pigment scraped from oxidized metal and used in Renaissance painting before being supplanted by more stable greens. The color refers to a thick verdigris on aged copper roofing or the Statue of Liberty's surface: a soft, slightly muted blue-green with the powdery finish of mineral oxide. Cooler than patina, warmer than seafoam, with the archaeological weight of a mineral made by time.

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

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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.

#55b8aa
Original
#b0afaa
Protanopia
#a1a3ab
Deuteranopia
#11bbb4
Tritanopia
#a2a2a2
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
2.38:1
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
8.82:1

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