#51DD4B#51DD4B

#51DD4B is a light, highly saturated green. Relative luminance 0.540; OKLCH L 79.3% C 0.222 H 142.6°. Best body text is #000000 at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#51DD4B
RGB	rgb(81, 221, 75)
HSL	hsl(118, 68%, 58%)
HSV	hsv(118, 66%, 87%)
CMYK	cmyk(63.3%, 0%, 66.1%, 13.3%)
CIE-LAB	lab(78.44, -64.70, 58.48)
CIE-LCH	lch(78.44, 87.22, 137.89°)
OKLab	oklab(79.27% -0.176 0.1348)
OKLCH	oklch(79.27% 0.222 142.6)
XYZ	xyz(30.5181, 53.9672, 15.4637)
Luminance	0.5397 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD4B #D74BDD

analogous

#9ADD4B #51DD4B #4BDD8E

triadic

#51DD4B #4B51DD #DD4B51

tetradic

#51DD4B #4B9ADD #D74BDD #DD8E4B

square

#51DD4B #4B9ADD #D74BDD #DD8E4B

split-complementary

#51DD4B #8E4BDD #DD4B9A

monochromatic

#20921C #2CC525 #51DD4B #83E77E #B5F0B2

Accessibility & contrast

On white

1.78

#51DD4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.79

#51DD4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD4B

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD4B	#FFFFFF	#000000	##000000
##51DD4B	1.00	1.78	11.79	11.79
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.79	21.00	1.00	1.00
##000000	11.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C938

Deuteranopia (green-blind)

#D1BE58

Tritanopia (blue-blind)

#35D7BF

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51dd4b;
/* rgb */ color: rgb(81, 221, 75);
/* oklch */ color: oklch(79.3% 0.222 142.6);

Tailwind

colors: {
  custom: {
    50: '#92e984',
    500: '#51dd4b',
    950: '#000000',
  },
}

SCSS

$custom: #51dd4b;
$custom-light: #92e984;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd4b",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 75
  },
  "hsl": {
    "h": 117.534,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.79271,
    "c": 0.2217,
    "h": 142.6
  },
  "luminance": 0.5397
}

Semantic roles & 50–950 ramp

primary

#51DD4B

secondary

#933597

accent

#3DEBE4

background

#FCFEFB

surface

#F5FDF2

border

#CFD5CC

text

#0E160B

muted

#7F847E

Preview Lab

Preview with #51DD4B

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

Preview Lab → · Contrast checker → · Palette generator →