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Gaudy Demantoid

#65ab21
Notes

Gaudy Demantoid (#65AB21) is a true lime with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (90°, 68%, 40%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#65ab21
RGB
rgb(101, 171, 33)
HSL
hsl(90, 68%, 40%)
HWB
hwb(90 13% 33%)
OKLCH
oklch(66.9% 0.178 133.6)
HSV
hsv(90, 81%, 67%)
LAB
lab(63.34% -43.60 58.43)
LCH
lch(63.34% 72.90 126.73)
CMYK
cmyk(41%, 0%, 81%, 33%)

Etymology

Gaudy
adjective

Middle English gaude, trick / showy ornament — adjectival suffix -y. As a color modifier, gaudy implies a saturated-and-cheaply-bright-and-overdone quality, the bright color of carnival-and-fairground novelty-attraction painted-and-lit decoration. Sits at the bright-and-flamboyant end of the grid, parallel to garish and lurid in usage.

Demantoid
noun

A green variety of andradite garnet — known for its high dispersion (more than diamond) and prized in late-Tsarist-era Russian jewelry. Mined principally in the Russian Urals, Namibia, and Madagascar. The color refers to a faceted Russian demantoid: a saturated, slightly cool deep green with the gem's signature internal fire.

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.

#65ab21
Original
#b29d00
Protanopia
#a99731
Deuteranopia
#65a492
Tritanopia
#929292
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
2.84:1
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
7.40:1

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