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Healthful Lánsè

#40a2a4
Notes

Healthful Lánsè (#40A2A4) 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 (181°, 44%, 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
#40a2a4
RGB
rgb(64, 162, 164)
HSL
hsl(181, 44%, 45%)
HWB
hwb(181 25% 36%)
OKLCH
oklch(65.6% 0.090 197.1)
HSV
hsv(181, 61%, 64%)
LAB
lab(61.32% -27.51 -9.56)
LCH
lch(61.32% 29.12 199.16)
CMYK
cmyk(61%, 1%, 0%, 36%)

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.

Lánsè
noun

The Chinese word for blue — combining lán (blue) and (color). Used for the blue of Ming-dynasty porcelain underglaze, lán-bù (denim), and the deep blue of imperial banners. The color refers to fresh-painted lán-bù cotton: a saturated, slightly cool deep blue with the matte finish of indigo-and-cotton.

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.

#40a2a4
Original
#989ba4
Protanopia
#888fa5
Deuteranopia
#00a7a2
Tritanopia
#8d8d8d
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
3.03:1
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
6.92:1

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