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Combustive Sprout

#8cba28
Notes

Combustive Sprout (#8CBA28) 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 (79°, 65%, 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8cba28
RGB
rgb(140, 186, 40)
HSL
hsl(79, 65%, 44%)
HWB
hwb(79 16% 27%)
OKLCH
oklch(73.0% 0.173 126.3)
P3
color(display-p3 0.5864 0.7243 0.2702)
HSV
hsv(79, 78%, 73%)
LAB
lab(70.07% -35.32 63.33)
LCH
lch(70.07% 72.51 119.15)
CMYK
cmyk(25%, 0%, 78%, 27%)

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.

Sprout
noun

A sprout is a newly emerged seedling — the first vascular leaves above the cotyledons, when chlorophyll is just developing. The color refers to a tray of pea or alfalfa sprouts: a soft, slightly yellow-shifted green with the optical translucency of cells full of water. Lighter than apple, cooler than wheat, with the optimism of growth visible over a single day.

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.

#8cba28
Original
#c4ad00
Protanopia
#beab37
Deuteranopia
#92b19f
Tritanopia
#a6a6a6
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
2.29:1
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
9.17:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##8CBA28
Display P3
Display P3
color(display-p3 0.5864 0.7243 0.2702)
P3 has subtle headroomOKLCH chroma 0.173

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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