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Neon Seagrass

#31d4b1
Notes

Neon Seagrass (#31D4B1) 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 (167°, 65%, 51%) 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
#31d4b1
RGB
rgb(49, 212, 177)
HSL
hsl(167, 65%, 51%)
HWB
hwb(167 19% 17%)
OKLCH
oklch(78.1% 0.138 174.0)
HSV
hsv(167, 77%, 83%)
LAB
lab(76.62% -48.74 5.72)
LCH
lch(76.62% 49.08 173.31)
CMYK
cmyk(77%, 0%, 17%, 17%)

Etymology

Neon
adjective

Greek néon, new — element-name (atomic-number 10), discovered by William Ramsay in 1898. As a color modifier, neon implies a saturated-and-electric-glow quality, the bright color of Las-Vegas-and-Times-Square neon-marquee gas-discharge-tube emission. Sits at the bright-and-electric end of the grid, parallel to electric and fluorescent in usage.

Seagrass
noun

Marine flowering plants — distinct from algae — that form underwater meadows in shallow coastal waters worldwide. Genera include Zostera, Posidonia, Thalassia. The color refers to a tropical seagrass meadow at low tide: a soft, slightly cool deep blue-green with the satin finish of submerged grass-leaves.

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.

#31d4b1
Original
#cdc6af
Protanopia
#b8b7b4
Deuteranopia
#00d6ca
Tritanopia
#afafaf
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
1.88:1
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
11.18:1

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