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Garish Seafoam

#21bf64
Notes

Garish Seafoam (#21BF64) 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 (145°, 71%, 44%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#21bf64
RGB
rgb(33, 191, 100)
HSL
hsl(145, 71%, 44%)
HWB
hwb(145 13% 25%)
OKLCH
oklch(70.8% 0.180 151.5)
HSV
hsv(145, 83%, 75%)
LAB
lab(68.39% -58.83 35.03)
LCH
lch(68.39% 68.47 149.23)
CMYK
cmyk(83%, 0%, 48%, 25%)

Etymology

Garish
adjective

Middle English garen, to stare — adjectival suffix -ish. As a color modifier, garish implies a saturated-and-eye-stunning-and-overdone quality, the bright color of Las-Vegas-and-Coney-Island over-the-top neon-marquee display. Sits at the bright-and-flamboyant end of the grid, parallel to gaudy and lurid in usage.

Seafoam
noun

The pale, slightly translucent green-blue of foam on a breaking wave — light scattered through micron-scale air bubbles in salt water, with a touch of the sea's color showing through. Seafoam green refers specifically to that desaturated tint: a soft, very pale green-blue with the optical lightness of small bubbles in motion. Lighter than mint, cooler than celadon.

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.

#21bf64
Original
#c0ae5d
Protanopia
#aea26b
Deuteranopia
#00bca9
Tritanopia
#979797
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
2.41:1
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
8.70:1

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