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Bold Verdure

#31a740
Notes

Bold Verdure (#31A740) 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 (128°, 55%, 42%) 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
#31a740
RGB
rgb(49, 167, 64)
HSL
hsl(128, 55%, 42%)
HWB
hwb(128 19% 35%)
OKLCH
oklch(64.2% 0.176 145.1)
HSV
hsv(128, 71%, 65%)
LAB
lab(60.48% -53.52 43.04)
LCH
lch(60.48% 68.68 141.19)
CMYK
cmyk(71%, 0%, 62%, 35%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

Verdure
noun

The lush green of healthy vegetation — used in landscape painting and Mediterranean gardening vocabulary. Verdure color refers to a Tuscan landscape in late spring: a saturated, slightly cool deep green with the matte finish of well-irrigated foliage. Drier than verdant.

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.

#31a740
Original
#aa9835
Protanopia
#9c8e49
Deuteranopia
#00a391
Tritanopia
#868686
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
3.12:1
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
6.73:1

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