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Reinforced Limetta

#51a11e
Notes

Reinforced Limetta (#51A11E) is a true lime with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (97°, 69%, 37%) 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
#51a11e
RGB
rgb(81, 161, 30)
HSL
hsl(97, 69%, 37%)
HWB
hwb(97 12% 37%)
OKLCH
oklch(63.4% 0.178 136.6)
P3
color(display-p3 0.3972 0.6240 0.2181)
HSV
hsv(97, 81%, 63%)
LAB
lab(59.28% -46.28 55.24)
LCH
lch(59.28% 72.06 129.96)
CMYK
cmyk(50%, 0%, 81%, 37%)

Etymology

Reinforced
adjective

Latin re- plus inforce — past-participle of reinforce. As a color modifier, reinforced implies a saturated-and-doubled-up-and-strengthened quality where the hue carries layered pigmentation for maximum visual presence. Sits at the bold-and-fortified end of the grid, parallel to fortified and buttressed.

Limetta
noun

The Italian name for bergamotCitrus bergamia — the tart citrus fruit cultivated in Calabria for the essential oil that flavors Earl Grey tea and eau de Cologne. The color refers to a fresh-cut bergamot at peak ripeness: a saturated, slightly cool yellow-green with the matte finish of citrus rind. Cooler than limone.

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.

#51a11e
Original
#a79300
Protanopia
#9c8c2e
Deuteranopia
#4d9b89
Tritanopia
#878787
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
3.25:1
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
6.47:1

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
##51A11E
Display P3
Display P3
color(display-p3 0.3972 0.6240 0.2181)
P3 has subtle headroomOKLCH chroma 0.178

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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