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Spectral Spearmint

#40e3bd
Notes

Spectral Spearmint (#40E3BD) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (166°, 74%, 57%) 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
#40e3bd
RGB
rgb(64, 227, 189)
HSL
hsl(166, 74%, 57%)
HWB
hwb(166 25% 11%)
OKLCH
oklch(82.4% 0.143 173.2)
HSV
hsv(166, 72%, 89%)
LAB
lab(81.67% -50.21 6.64)
LCH
lch(81.67% 50.65 172.47)
CMYK
cmyk(72%, 0%, 17%, 11%)

Etymology

Spectral
adjective

Latin spectrum, appearance — adjectival suffix -al. As a color modifier, spectral implies a saturated-and-rainbow-decomposed-and-pure quality, the bright color of Newton-prism sunlight-decomposed seven-color spectrum band. Sits at the bright-and-pure end of the grid, parallel to prismatic and pure in usage.

Spearmint
noun

Mentha spicata, the mild green mint of Mediterranean kitchens — the lamb-sauce mint of British cooking, the mojito mint of Cuba, the karkadeh tea garnish of Egypt. The color refers to fresh spearmint leaves: a saturated, slightly cool green with the matte finish of trichome-rich foliage. Brighter than peppermint, lighter than basil, with the lighter aromatic profile of carvone instead of menthol.

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.

#40e3bd
Original
#dcd4bb
Protanopia
#c6c4c0
Deuteranopia
#00e5d8
Tritanopia
#bebebe
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
1.62:1
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
12.94:1

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