#51E66C#51E66C

#51E66C is a light, highly saturated green. Relative luminance 0.594; OKLCH L 81.9% C 0.207 H 146.6°. Best body text is #000000 at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#51E66C
RGB	rgb(81, 230, 108)
HSL	hsl(131, 75%, 61%)
HSV	hsv(131, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 53%, 9.8%)
CIE-LAB	lab(81.52, -64.05, 47.60)
CIE-LCH	lch(81.52, 79.80, 143.39°)
OKLab	oklab(81.92% -0.1729 0.1141)
OKLCH	oklch(81.92% 0.207 146.6)
XYZ	xyz(34.3946, 59.4221, 23.8415)
Luminance	0.5943 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E66C #E651CB

analogous

#81E651 #51E66C #51E6B6

triadic

#51E66C #6C51E6 #E66C51

tetradic

#51E66C #5181E6 #E651CB #E6B651

square

#51E66C #5181E6 #E651CB #E6B651

split-complementary

#51E66C #B651E6 #E65181

monochromatic

#18A531 #1FDA41 #51E66C #87EE99 #BCF5C6

Accessibility & contrast

On white

1.63

#51E66C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.89

#51E66C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E66C

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E66C	#FFFFFF	#000000	##000000
##51E66C	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)

#E9D261

Deuteranopia (green-blind)

#D7C675

Tritanopia (blue-blind)

#22E1CA

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51e66c;
/* rgb */ color: rgb(81, 230, 108);
/* oklch */ color: oklch(81.9% 0.207 146.6);

Tailwind

colors: {
  custom: {
    50: '#92ef99',
    500: '#51e66c',
    950: '#000000',
  },
}

SCSS

$custom: #51e66c;
$custom-light: #92ef99;
$custom-dark: #000000;

JSON

{
  "hex": "#51e66c",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 108
  },
  "hsl": {
    "h": 130.872,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81922,
    "c": 0.20721,
    "h": 146.6
  },
  "luminance": 0.59426
}

Semantic roles & 50–950 ramp

primary

#51E66C

secondary

#A73492

accent

#0EB3D7

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E170E

muted

#7F857F

Preview Lab

Preview with #51E66C

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

Preview Lab → · Contrast checker → · Palette generator →