#51D951#51D951

#51D951 is a light, highly saturated green. Relative luminance 0.520; OKLCH L 78.3% C 0.213 H 143.2°. Best body text is #000000 at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#51D951
RGB	rgb(81, 217, 81)
HSL	hsl(120, 64%, 58%)
HSV	hsv(120, 63%, 85%)
CMYK	cmyk(62.7%, 0%, 62.7%, 14.9%)
CIE-LAB	lab(77.26, -62.73, 54.71)
CIE-LCH	lch(77.26, 83.24, 138.91°)
OKLab	oklab(78.31% -0.1704 0.1274)
OKLCH	oklch(78.31% 0.213 143.2)
XYZ	xyz(29.6897, 51.9662, 16.2488)
Luminance	0.5197 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D951 #D951D9

analogous

#95D951 #51D951 #51D995

triadic

#51D951 #5151D9 #D95151

tetradic

#51D951 #5195D9 #D951D9 #D99551

square

#51D951 #5195D9 #D951D9 #D99551

split-complementary

#51D951 #9551D9 #D95195

monochromatic

#1F901F #2AC22A #51D951 #83E483 #B5EFB5

Accessibility & contrast

On white

1.84

#51D951 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.39

#51D951 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D951

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D951	#FFFFFF	#000000	##000000
##51D951	1.00	1.84	11.39	11.39
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.39	21.00	1.00	1.00
##000000	11.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC641

Deuteranopia (green-blind)

#CDBA5D

Tritanopia (blue-blind)

#35D3BC

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51d951;
/* rgb */ color: rgb(81, 217, 81);
/* oklch */ color: oklch(78.3% 0.213 143.2);

Tailwind

colors: {
  custom: {
    50: '#91e687',
    500: '#51d951',
    950: '#000000',
  },
}

SCSS

$custom: #51d951;
$custom-light: #91e687;
$custom-dark: #000000;

JSON

{
  "hex": "#51d951",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 81
  },
  "hsl": {
    "h": 120,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.78311,
    "c": 0.21276,
    "h": 143.2
  },
  "luminance": 0.51969
}

Semantic roles & 50–950 ramp

primary

#51D951

secondary

#953995

accent

#41E7E7

background

#FCFEFC

surface

#F5FCF3

border

#CFD5CD

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51D951

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

Preview Lab → · Contrast checker → · Palette generator →