#51D781#51D781

#51D781 is a light, vivid green. Relative luminance 0.519; OKLCH L 78.5% C 0.169 H 152.1°. Best body text is #000000 at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#51D781
RGB	rgb(81, 215, 129)
HSL	hsl(141, 63%, 58%)
HSV	hsv(141, 62%, 84%)
CMYK	cmyk(62.3%, 0%, 40%, 15.7%)
CIE-LAB	lab(77.24, -55.32, 31.90)
CIE-LCH	lch(77.24, 63.86, 150.03°)
OKLab	oklab(78.49% -0.1495 0.0793)
OKLCH	oklch(78.49% 0.169 152.1)
XYZ	xyz(31.6537, 51.9320, 29.1204)
Luminance	0.5193 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D781 #D751A7

analogous

#64D751 #51D781 #51D7C4

triadic

#51D781 #8151D7 #D78151

tetradic

#51D781 #5164D7 #D751A7 #D7C451

square

#51D781 #5164D7 #D751A7 #D7C451

split-complementary

#51D781 #C451D7 #D75164

monochromatic

#208D47 #2CBF61 #51D781 #83E2A5 #B5EEC9

Accessibility & contrast

On white

1.84

#51D781 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.39

#51D781 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D781

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D781	#FFFFFF	#000000	##000000
##51D781	1.00	1.84	11.39	11.39
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.39	21.00	1.00	1.00
##000000	11.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7C67B

Deuteranopia (green-blind)

#C6BA87

Tritanopia (blue-blind)

#1CD4C2

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51d781;
/* rgb */ color: rgb(81, 215, 129);
/* oklch */ color: oklch(78.5% 0.169 152.1);

Tailwind

colors: {
  custom: {
    50: '#8fe4a6',
    500: '#51d781',
    950: '#000000',
  },
}

SCSS

$custom: #51d781;
$custom-light: #8fe4a6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d781",
  "rgb": {
    "r": 81,
    "g": 215,
    "b": 129
  },
  "hsl": {
    "h": 141.493,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.78486,
    "c": 0.16924,
    "h": 152.1
  },
  "luminance": 0.51935
}

Semantic roles & 50–950 ramp

primary

#51D781

secondary

#933973

accent

#42ABE6

background

#FCFEFC

surface

#F5FCF6

border

#CFD5D0

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51D781

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

Preview Lab → · Contrast checker → · Palette generator →