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Combustive Olive

#81b114
Notes

Combustive Olive (#81B114) is a true lime with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (78°, 80%, 39%) 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
#81b114
RGB
rgb(129, 177, 20)
HSL
hsl(78, 80%, 39%)
HWB
hwb(78 8% 31%)
OKLCH
oklch(70.0% 0.175 126.9)
HSV
hsv(78, 89%, 69%)
LAB
lab(66.64% -36.28 65.01)
LCH
lch(66.64% 74.45 119.16)
CMYK
cmyk(27%, 0%, 89%, 31%)

Etymology

Combustive
adjective

Latin combūstus, burnt — adjectival suffix -ive, derived from com-burere (to burn-up). As a color modifier, combustive implies a saturated-and-burning-active quality, the bright color of blast-furnace-and-foundry combustion-chamber emission. Sits at the bright-and-warm end of the grid, parallel to fiery and blazing in usage.

Olive
noun

Olea europaea, the Mediterranean tree cultivated for at least six thousand years for fruit and oil. The color refers specifically to a green olive cured in brine before ripening: a slightly muted, yellow-shifted green with the matte surface of a fruit eaten before it darkens. Drabber than lime, warmer than moss, with the agricultural weight of a tree that can live two thousand years.

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.

#81b114
Original
#bba400
Protanopia
#b4a12a
Deuteranopia
#87a896
Tritanopia
#9b9b9b
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
2.55:1
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
8.23:1

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