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Aflame Yanagi

#64bc37
Notes

Aflame Yanagi (#64BC37) is a true green 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 (100°, 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#64bc37
RGB
rgb(100, 188, 55)
HSL
hsl(100, 55%, 48%)
HWB
hwb(100 22% 26%)
OKLCH
oklch(71.4% 0.187 137.1)
P3
color(display-p3 0.4778 0.7290 0.3003)
HSV
hsv(100, 71%, 74%)
LAB
lab(68.72% -49.44 56.21)
LCH
lch(68.72% 74.86 131.33)
CMYK
cmyk(47%, 0%, 71%, 26%)

Etymology

Aflame
adjective

Old English on-flamme, on-fire. As a color modifier, aflame implies a saturated-and-burning-bright quality, the bright color of autumn-Maple-and-Oak peak-color deciduous-foliage and Bonfire-Night large-flame fire emission. Sits at the bright-and-warm end of the grid, parallel to flaming and blazing in usage.

Yanagi
noun

Salix — the willow in Japanese, and the soft yellow-green of fresh willow leaves in spring. Yanagi-iro is a traditional Japanese fashion color, distinct from moegi by its slightly cooler shift. The color refers to a fresh willow leaf along a Kyoto canal: a soft, slightly cool yellow-green with the satin finish of new lanceolate foliage.

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.

#64bc37
Original
#c2ac21
Protanopia
#b7a544
Deuteranopia
#5fb5a2
Tritanopia
#a0a0a0
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
2.39:1
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
8.79:1

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
##64BC37
Display P3
Display P3
color(display-p3 0.4778 0.7290 0.3003)
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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