#51ac0a

Color #51ac0a

A vivid, highly saturated dark green.

Closest named color Lime Green #32cd32 · ΔE 18.77 Nearest Tailwind class lime-600 #5ea500 · ΔE 2.8

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#51ac0a

RGB

rgb(81, 172, 10)

HSL

hsl(93.7, 89%, 35.7%)

HSV / HSB

hsv(93.7, 94.2%, 67.5%)

CMYK

cmyk(52.9%, 0%, 94.2%, 32.5%)

LAB

lab(62.74, -51.2, 62.44)

LCH

lch(62.74, 80.75, 129.35)

OKLCH

oklch(66.2%, 0.1964, 136.63)

HWB

hwb(93.7, 3.9%, 32.5%)

Harmony colors

Complementary

#650aac

Analogous

#a2ac0a

#51ac0a

#0aac14

Triadic

#51ac0a

#0a51ac

#ac0a51

Split-complementary

#51ac0a

#140aac

#ac0aa2

Tetradic

#51ac0a

#0aac65

#650aac

#ac0a51

Square

#51ac0a

#0aa2ac

#650aac

#ac140a

Shades

Color #51ac0a mixed toward black.

#448f08

#367307

#295605

#1b3903

#0e1d02

Tints

Color #51ac0a mixed toward white.

#69e00d

#86f330

#a4f664

#c2f998

#e1fccb

Tones

Color #51ac0a mixed toward gray.

#539f18

#549125

#568433

#587640

#59694e

Accessibility

Aa White text on this color

2.89:1

Aa Black text on this color

7.26:1

Black text reads better on this background (7.26:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#83835a · ΔE 21.1

Deuteranopia

#7d7663 · ΔE 28

Tritanopia

#59767b · ΔE 35.4

Achromatopsia

#989898 · ΔE 28.7

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #51ac0a;

Tailwind (arbitrary value)

bg-[#51ac0a]

Related colors

Lawn Green #7cfc00

Chartreuse #7fff00

Green Yellow #adff2f

Dark Olive Green #556b2f

Yellow Green #9acd32

Olive Drab #6b8e23

Frequently asked questions

#51ac0a (#51ac0a) is rgb(81, 172, 10) in RGB.

No, #51ac0a is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #51ac0a, or check how it holds up for accessibility.

Generate a palette → Check contrast