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Earthygreen

Rich Fern Cascade

#3f9b31
Notes

Rich Fern Cascade (#3F9B31) 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 (112°, 52%, 40%) 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
#3f9b31
RGB
rgb(63, 155, 49)
HSL
hsl(112, 52%, 40%)
HWB
hwb(112 19% 39%)
OKLCH
oklch(61.2% 0.167 141.2)
HSV
hsv(112, 68%, 61%)
LAB
lab(56.80% -47.71 45.70)
LCH
lch(56.80% 66.07 136.24)
CMYK
cmyk(59%, 0%, 68%, 39%)

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.

#3f9b31
Original
#9f8d22
Protanopia
#93853b
Deuteranopia
#329685
Tritanopia
#808080
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).
AA Largeon White
3.53:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.94:1

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