#51DE81#51DE81

#51DE81 is a light, vivid green. Relative luminance 0.556; OKLCH L 80.2% C 0.179 H 151.3°. Best body text is #000000 at 12.12:1 contrast (WCAG AA passes).

Color values

HEX	#51DE81
RGB	rgb(81, 222, 129)
HSL	hsl(140, 68%, 59%)
HSV	hsv(140, 64%, 87%)
CMYK	cmyk(63.5%, 0%, 41.9%, 12.9%)
CIE-LAB	lab(79.37, -57.98, 34.69)
CIE-LCH	lch(79.37, 67.56, 149.11°)
OKLab	oklab(80.24% -0.1566 0.0858)
OKLCH	oklch(80.24% 0.179 151.3)
XYZ	xyz(33.4744, 55.5734, 29.7273)
Luminance	0.5558 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DE81 #DE51AE

analogous

#67DE51 #51DE81 #51DEC8

triadic

#51DE81 #8151DE #DE8151

tetradic

#51DE81 #5167DE #DE51AE #DEC851

square

#51DE81 #5167DE #DE51AE #DEC851

split-complementary

#51DE81 #C851DE #DE5167

monochromatic

#1D9847 #27CB5F #51DE81 #84E8A6 #B8F2CC

Accessibility & contrast

On white

1.73

#51DE81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.12

#51DE81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DE81

12.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DE81	#FFFFFF	#000000	##000000
##51DE81	1.00	1.73	12.12	12.12
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.12	21.00	1.00	1.00
##000000	12.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFCC7A

Deuteranopia (green-blind)

#CDC087

Tritanopia (blue-blind)

#16DBC7

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #51de81;
/* rgb */ color: rgb(81, 222, 129);
/* oklch */ color: oklch(80.2% 0.179 151.3);

Tailwind

colors: {
  custom: {
    50: '#90e9a6',
    500: '#51de81',
    950: '#000000',
  },
}

SCSS

$custom: #51de81;
$custom-light: #90e9a6;
$custom-dark: #000000;

JSON

{
  "hex": "#51de81",
  "rgb": {
    "r": 81,
    "g": 222,
    "b": 129
  },
  "hsl": {
    "h": 140.426,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.80239,
    "c": 0.17851,
    "h": 151.3
  },
  "luminance": 0.55577
}

Semantic roles & 50–950 ramp

primary

#51DE81

secondary

#9C377A

accent

#3DB0EB

background

#FCFEFC

surface

#F5FDF6

border

#CFD5D0

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DE81

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

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