#51D381#51D381

#51D381 is a light, vivid green. Relative luminance 0.499; OKLCH L 77.5% C 0.164 H 152.6°. Best body text is #000000 at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#51D381
RGB	rgb(81, 211, 129)
HSL	hsl(142, 60%, 57%)
HSV	hsv(142, 62%, 83%)
CMYK	cmyk(61.6%, 0%, 38.9%, 17.3%)
CIE-LAB	lab(76.02, -53.77, 30.29)
CIE-LCH	lch(76.02, 61.72, 150.60°)
OKLab	oklab(77.48% -0.1455 0.0755)
OKLCH	oklch(77.48% 0.164 152.6)
XYZ	xyz(30.6476, 49.9198, 28.7850)
Luminance	0.4992 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D381 #D351A3

analogous

#62D351 #51D381 #51D3C2

triadic

#51D381 #8151D3 #D38151

tetradic

#51D381 #5162D3 #D351A3 #D3C251

square

#51D381 #5162D3 #D351A3 #D3C251

split-complementary

#51D381 #C251D3 #D35162

monochromatic

#228748 #2FB861 #51D381 #82DFA4 #B3ECC8

Accessibility & contrast

On white

1.91

#51D381 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.98

#51D381 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D381

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D381	#FFFFFF	#000000	##000000
##51D381	1.00	1.91	10.98	10.98
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.98	21.00	1.00	1.00
##000000	10.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3C37B

Deuteranopia (green-blind)

#C2B786

Tritanopia (blue-blind)

#1FD0BE

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51d381;
/* rgb */ color: rgb(81, 211, 129);
/* oklch */ color: oklch(77.5% 0.164 152.6);

Tailwind

colors: {
  custom: {
    50: '#8ee1a6',
    500: '#51d381',
    950: '#000000',
  },
}

SCSS

$custom: #51d381;
$custom-light: #8ee1a6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d381",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 129
  },
  "hsl": {
    "h": 142.154,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.77483,
    "c": 0.16388,
    "h": 152.6
  },
  "luminance": 0.49923
}

Semantic roles & 50–950 ramp

primary

#51D381

secondary

#DAA6C7

accent

#45A9E3

background

#F9FDFA

surface

#F2FBF4

border

#CCD4CE

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #51D381

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

Preview Lab → · Contrast checker → · Palette generator →