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Sharp Verdolaga

#51b31d
Notes

Sharp Verdolaga (#51B31D) is a true lime with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (99°, 72%, 41%) 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
#51b31d
RGB
rgb(81, 179, 29)
HSL
hsl(99, 72%, 41%)
HWB
hwb(99 11% 30%)
OKLCH
oklch(68.1% 0.199 137.8)
P3
color(display-p3 0.4205 0.6933 0.2354)
HSV
hsv(99, 84%, 70%)
LAB
lab(65.02% -53.17 60.74)
LCH
lch(65.02% 80.72 131.20)
CMYK
cmyk(55%, 0%, 84%, 30%)

Etymology

Sharp
adjective

Old English scearp, cutting, pointed — applied metaphorically to color since the seventeenth century for hues that read as definite and edge-defined. Sharp red, sharp green: the implication is saturation combined with high-contrast crispness. Sits in the bright-bucket center alongside crisp and clear, with a slightly more incisive edge.

Verdolaga
noun

Portulaca oleracea, the Mediterranean and South American purslane — a leafy succulent eaten as a salad green and stewed dish across Spain, Mexico, and Greece. Verdolaga color refers to fresh purslane leaves in a salad bowl: a saturated, slightly cool yellow-green with the satin finish of succulent leaf tissue.

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.

#51b31d
Original
#b9a300
Protanopia
#ad9b31
Deuteranopia
#49ac98
Tritanopia
#939393
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
2.69:1
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
7.82:1

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
##51B31D
Display P3
Display P3
color(display-p3 0.4205 0.6933 0.2354)
P3 has visible headroomOKLCH chroma 0.199

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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