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Kindled Frond

#66b733
Notes

Kindled Frond (#66B733) 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 (97°, 56%, 46%) 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
#66b733
RGB
rgb(102, 183, 51)
HSL
hsl(97, 56%, 46%)
HWB
hwb(97 20% 28%)
OKLCH
oklch(70.2% 0.182 135.9)
P3
color(display-p3 0.4770 0.7099 0.2864)
HSV
hsv(97, 72%, 72%)
LAB
lab(67.22% -47.10 56.22)
LCH
lch(67.22% 73.34 129.96)
CMYK
cmyk(44%, 0%, 72%, 28%)

Etymology

Kindled
adjective

Old Norse kynda, to set on fire — past-participle of kindle. As a color modifier, kindled implies a saturated-and-newly-lit quality, the bright color of autumn-bonfire-and-stove-fire initial-combustion emission. Sits at the bright-and-warm end of the grid, parallel to ignited and aflame in usage.

Frond
noun

The botanical term for a divided leaf — the segmented blade of a fern, palm, or cycad. The color refers to the upper surface of a healthy unfurled fern frond: a soft, slightly yellow-shifted green with the matte chlorophyll finish of new growth. Lighter than fern, cooler than sage, with the unfurling gesture implied by a word that means leaf almost everywhere except where it means primitive plant.

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.

#66b733
Original
#bda81c
Protanopia
#b3a140
Deuteranopia
#63b09d
Tritanopia
#9c9c9c
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
2.50:1
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
8.39:1

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
##66B733
Display P3
Display P3
color(display-p3 0.4770 0.7099 0.2864)
P3 has visible headroomOKLCH chroma 0.182

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.

Related Colors

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