#51DD4C#51DD4C

#51DD4C is a light, highly saturated green. Relative luminance 0.540; OKLCH L 79.3% C 0.221 H 142.7°. Best body text is #000000 at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#51DD4C
RGB	rgb(81, 221, 76)
HSL	hsl(118, 68%, 58%)
HSV	hsv(118, 66%, 87%)
CMYK	cmyk(63.3%, 0%, 65.6%, 13.3%)
CIE-LAB	lab(78.45, -64.60, 58.09)
CIE-LCH	lch(78.45, 86.88, 138.04°)
OKLab	oklab(79.28% -0.1757 0.1341)
OKLCH	oklch(79.28% 0.221 142.7)
XYZ	xyz(30.5526, 53.9810, 15.6453)
Luminance	0.5398 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD4C #D84CDD

analogous

#99DD4C #51DD4C #4CDD8F

triadic

#51DD4C #4C51DD #DD4C51

tetradic

#51DD4C #4C99DD #D84CDD #DD8F4C

square

#51DD4C #4C99DD #D84CDD #DD8F4C

split-complementary

#51DD4C #8F4CDD #DD4C99

monochromatic

#20931C #2BC626 #51DD4C #83E77F #B5F1B3

Accessibility & contrast

On white

1.78

#51DD4C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.80

#51DD4C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD4C

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD4C	#FFFFFF	#000000	##000000
##51DD4C	1.00	1.78	11.80	11.80
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.80	21.00	1.00	1.00
##000000	11.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C939

Deuteranopia (green-blind)

#D1BE59

Tritanopia (blue-blind)

#34D7BF

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51dd4c;
/* rgb */ color: rgb(81, 221, 76);
/* oklch */ color: oklch(79.3% 0.221 142.7);

Tailwind

colors: {
  custom: {
    50: '#92e984',
    500: '#51dd4c',
    950: '#000000',
  },
}

SCSS

$custom: #51dd4c;
$custom-light: #92e984;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd4c",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 76
  },
  "hsl": {
    "h": 117.931,
    "s": 68.075,
    "l": 58.235
  },
  "oklch": {
    "l": 0.79281,
    "c": 0.22102,
    "h": 142.7
  },
  "luminance": 0.53984
}

Semantic roles & 50–950 ramp

primary

#51DD4C

secondary

#943697

accent

#3DEBE5

background

#FCFEFB

surface

#F5FDF2

border

#CFD5CC

text

#0E160B

muted

#7F847E

Preview Lab

Preview with #51DD4C

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

Preview Lab → · Contrast checker → · Palette generator →