#51DA4B#51DA4B

#51DA4B is a light, highly saturated green. Relative luminance 0.524; OKLCH L 78.5% C 0.218 H 142.6°. Best body text is #000000 at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#51DA4B
RGB	rgb(81, 218, 75)
HSL	hsl(117, 66%, 57%)
HSV	hsv(117, 66%, 85%)
CMYK	cmyk(62.8%, 0%, 65.6%, 14.5%)
CIE-LAB	lab(77.52, -63.67, 57.48)
CIE-LCH	lch(77.52, 85.78, 137.93°)
OKLab	oklab(78.51% -0.1732 0.1327)
OKLCH	oklch(78.51% 0.218 142.6)
XYZ	xyz(29.7331, 52.3972, 15.2020)
Luminance	0.5240 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DA4B #D44BDA

analogous

#98DA4B #51DA4B #4BDA8D

triadic

#51DA4B #4B51DA #DA4B51

tetradic

#51DA4B #4B98DA #D44BDA #DA8D4B

square

#51DA4B #4B98DA #D44BDA #DA8D4B

split-complementary

#51DA4B #8D4BDA #DA4B98

monochromatic

#228E1D #2EC028 #51DA4B #82E47E #B3EFB1

Accessibility & contrast

On white

1.83

#51DA4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.48

#51DA4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DA4B

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DA4B	#FFFFFF	#000000	##000000
##51DA4B	1.00	1.83	11.48	11.48
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.48	21.00	1.00	1.00
##000000	11.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC638

Deuteranopia (green-blind)

#CEBB58

Tritanopia (blue-blind)

#36D4BD

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51da4b;
/* rgb */ color: rgb(81, 218, 75);
/* oklch */ color: oklch(78.5% 0.218 142.6);

Tailwind

colors: {
  custom: {
    50: '#91e783',
    500: '#51da4b',
    950: '#000000',
  },
}

SCSS

$custom: #51da4b;
$custom-light: #91e783;
$custom-dark: #000000;

JSON

{
  "hex": "#51da4b",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 75
  },
  "hsl": {
    "h": 117.483,
    "s": 65.899,
    "l": 57.451
  },
  "oklch": {
    "l": 0.78507,
    "c": 0.2182,
    "h": 142.6
  },
  "luminance": 0.524
}

Semantic roles & 50–950 ramp

primary

#51DA4B

secondary

#8F3693

accent

#3FE9E2

background

#FCFEFB

surface

#F5FDF2

border

#CFD5CC

text

#0E160B

muted

#7F847E

Preview Lab

Preview with #51DA4B

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

Preview Lab → · Contrast checker → · Palette generator →