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Strobing Demantoid

#78ad12
Notes

Strobing Demantoid (#78AD12) is a true lime with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (81°, 81%, 37%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#78ad12
RGB
rgb(120, 173, 18)
HSL
hsl(81, 81%, 37%)
HWB
hwb(81 7% 32%)
OKLCH
oklch(68.5% 0.176 128.6)
HSV
hsv(81, 90%, 68%)
LAB
lab(64.90% -38.05 63.72)
LCH
lch(64.90% 74.22 120.84)
CMYK
cmyk(31%, 0%, 90%, 32%)

Etymology

Strobing
adjective

Greek stróbos, whirling — present-participle of strobe. As a color modifier, strobing implies a saturated-and-pulse-flashing quality, the bright color of concert-strobe-light and photographic-strobe high-frequency-pulse light emission. Sits at the bright-and-flashing end of the grid, parallel to flashing and pulsating 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.

#78ad12
Original
#b6a000
Protanopia
#af9c28
Deuteranopia
#7ca593
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
2.70:1
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
7.78:1

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