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Bold Reseda

#538f33
Notes

Bold Reseda (#538F33) is a true lime 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 (99°, 47%, 38%) 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
#538f33
RGB
rgb(83, 143, 51)
HSL
hsl(99, 47%, 38%)
HWB
hwb(99 20% 44%)
OKLCH
oklch(58.9% 0.140 136.4)
HSV
hsv(99, 64%, 56%)
LAB
lab(53.73% -36.59 41.71)
LCH
lch(53.73% 55.49 131.26)
CMYK
cmyk(42%, 0%, 64%, 44%)

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.

Reseda
noun

Reseda luteola, dyer's weed — a Mediterranean herb cultivated for the yellow dye extracted from its leaves and stalks since Roman times. Reseda as a color refers to a desaturated yellow-green: the soft, slightly muted shade of dried mignonette stems before extraction, or the pale ground of a Regency-era wallpaper. Cooler than sage, warmer than celadon, with the historical weight of an industrial-textile pigment.

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.

#538f33
Original
#948428
Protanopia
#8c7f3a
Deuteranopia
#518a7c
Tritanopia
#7c7c7c
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
3.93:1
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
5.34:1

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