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Burning Greenfinch

#63b84f
Notes

Burning Greenfinch (#63B84F) is a true green 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 (109°, 43%, 52%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#63b84f
RGB
rgb(99, 184, 79)
HSL
hsl(109, 43%, 52%)
HWB
hwb(109 31% 28%)
OKLCH
oklch(70.6% 0.164 139.9)
HSV
hsv(109, 57%, 72%)
LAB
lab(67.65% -45.86 44.78)
LCH
lch(67.65% 64.09 135.68)
CMYK
cmyk(46%, 0%, 57%, 28%)

Etymology

Burning
adjective

The progressive participle of burn — used as a color modifier for hues that read as actively luminous, as if combustion is in progress. Burning red, burning orange: the implication is high saturation combined with thermal heat. Sits in the bright-and-warm corner alongside hot and flame. Slightly more active than smoldering.

Greenfinch
noun

Chloris chloris, the European finch whose males in breeding plumage are yellow-green with bright yellow wing bars — common in British and Continental hedgerow gardens until trichomonosis collapsed populations in the 2000s. The color refers to a male European greenfinch in spring: a saturated, slightly muted yellow-green with the matte finish of carotenoid-pigmented feathers.

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.

#63b84f
Original
#bda945
Protanopia
#b1a257
Deuteranopia
#5cb2a1
Tritanopia
#9e9e9e
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
2.47:1
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
8.50:1

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