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Combustive Hara

#66bd37
Notes

Combustive Hara (#66BD37) is a true lime with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (99°, 55%, 48%) 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
#66bd37
RGB
rgb(102, 189, 55)
HSL
hsl(99, 55%, 48%)
HWB
hwb(99 22% 26%)
OKLCH
oklch(71.7% 0.187 136.8)
P3
color(display-p3 0.4841 0.7330 0.3013)
HSV
hsv(99, 71%, 74%)
LAB
lab(69.11% -49.22 56.64)
LCH
lch(69.11% 75.04 130.99)
CMYK
cmyk(46%, 0%, 71%, 26%)

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.

Hara
noun

The Hindi word for green — used for the saturated lime-green of fresh hara dhaniya (cilantro), hara mirch (green chili), and the hara saag leafy-green dishes of North Indian cooking. The color refers to fresh hara dhaniya leaves: a saturated, slightly cool yellow-green with the matte finish of fresh cilantro leaf.

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.

#66bd37
Original
#c3ad21
Protanopia
#b8a644
Deuteranopia
#62b6a3
Tritanopia
#a1a1a1
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
2.36:1
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
8.90:1

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
##66BD37
Display P3
Display P3
color(display-p3 0.4841 0.7330 0.3013)
P3 has visible headroomOKLCH chroma 0.187

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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