#51E66D#51E66D

#51E66D is a light, highly saturated green. Relative luminance 0.594; OKLCH L 81.9% C 0.206 H 146.7°. Best body text is #000000 at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#51E66D
RGB	rgb(81, 230, 109)
HSL	hsl(131, 75%, 61%)
HSV	hsv(131, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 52.6%, 9.8%)
CIE-LAB	lab(81.53, -63.92, 47.14)
CIE-LCH	lch(81.53, 79.42, 143.59°)
OKLab	oklab(81.94% -0.1726 0.1132)
OKLCH	oklch(81.94% 0.206 146.7)
XYZ	xyz(34.4481, 59.4435, 24.1234)
Luminance	0.5945 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E66D #E651CA

analogous

#7FE651 #51E66D #51E6B7

triadic

#51E66D #6D51E6 #E66D51

tetradic

#51E66D #517FE6 #E651CA #E6B751

square

#51E66D #517FE6 #E651CA #E6B751

split-complementary

#51E66D #B751E6 #E6517F

monochromatic

#18A532 #1FDA43 #51E66D #87EE9A #BCF5C7

Accessibility & contrast

On white

1.63

#51E66D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.89

#51E66D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E66D

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E66D	#FFFFFF	#000000	##000000
##51E66D	1.00	1.63	12.89	12.89
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.89	21.00	1.00	1.00
##000000	12.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D262

Deuteranopia (green-blind)

#D7C676

Tritanopia (blue-blind)

#21E1CB

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51e66d;
/* rgb */ color: rgb(81, 230, 109);
/* oklch */ color: oklch(81.9% 0.206 146.7);

Tailwind

colors: {
  custom: {
    50: '#92ef99',
    500: '#51e66d',
    950: '#000000',
  },
}

SCSS

$custom: #51e66d;
$custom-light: #92ef99;
$custom-dark: #000000;

JSON

{
  "hex": "#51e66d",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 109
  },
  "hsl": {
    "h": 131.275,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81935,
    "c": 0.20637,
    "h": 146.7
  },
  "luminance": 0.59447
}

Semantic roles & 50–950 ramp

primary

#51E66D

secondary

#A73491

accent

#0EB1D7

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E170E

muted

#7F857F

Preview Lab

Preview with #51E66D

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

Preview Lab → · Contrast checker → · Palette generator →