#51D181#51D181

#51D181 is a light, vivid green. Relative luminance 0.489; OKLCH L 77.0% C 0.161 H 152.8°. Best body text is #000000 at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#51D181
RGB	rgb(81, 209, 129)
HSL	hsl(143, 58%, 57%)
HSV	hsv(143, 61%, 82%)
CMYK	cmyk(61.2%, 0%, 38.3%, 18%)
CIE-LAB	lab(75.41, -52.99, 29.49)
CIE-LCH	lch(75.41, 60.64, 150.91°)
OKLab	oklab(76.98% -0.1434 0.0736)
OKLCH	oklch(76.98% 0.161 152.8)
XYZ	xyz(30.1538, 48.9322, 28.6204)
Luminance	0.4894 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D181 #D151A1

analogous

#61D151 #51D181 #51D1C1

triadic

#51D181 #8151D1 #D18151

tetradic

#51D181 #5161D1 #D151A1 #D1C151

square

#51D181 #5161D1 #D151A1 #D1C151

split-complementary

#51D181 #C151D1 #D15161

monochromatic

#238548 #30B562 #51D181 #81DEA4 #B2EBC7

Accessibility & contrast

On white

1.95

#51D181 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.79

#51D181 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D181

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D181	#FFFFFF	#000000	##000000
##51D181	1.00	1.95	10.79	10.79
#FFFFFF	1.95	1.00	21.00	21.00
#000000	10.79	21.00	1.00	1.00
##000000	10.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1C17C

Deuteranopia (green-blind)

#C0B586

Tritanopia (blue-blind)

#21CEBD

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #51d181;
/* rgb */ color: rgb(81, 209, 129);
/* oklch */ color: oklch(77.0% 0.161 152.8);

Tailwind

colors: {
  custom: {
    50: '#8ee0a6',
    500: '#51d181',
    950: '#000000',
  },
}

SCSS

$custom: #51d181;
$custom-light: #8ee0a6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d181",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 129
  },
  "hsl": {
    "h": 142.5,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.76982,
    "c": 0.16117,
    "h": 152.8
  },
  "luminance": 0.48935
}

Semantic roles & 50–950 ramp

primary

#51D181

secondary

#D9A5C5

accent

#46A7E1

background

#F9FDFA

surface

#F2FBF4

border

#CCD4CE

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #51D181

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →