#51D151#51D151

#51D151 is a light, highly saturated green. Relative luminance 0.479; OKLCH L 76.3% C 0.203 H 143.3°. Best body text is #000000 at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#51D151
RGB	rgb(81, 209, 81)
HSL	hsl(120, 58%, 57%)
HSV	hsv(120, 61%, 82%)
CMYK	cmyk(61.2%, 0%, 61.2%, 18%)
CIE-LAB	lab(74.79, -59.92, 51.93)
CIE-LCH	lch(74.79, 79.29, 139.09°)
OKLab	oklab(76.27% -0.1628 0.1215)
OKLCH	oklch(76.27% 0.203 143.3)
XYZ	xyz(27.6774, 47.9417, 15.5781)
Luminance	0.4794 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D151 #D151D1

analogous

#91D151 #51D151 #51D191

triadic

#51D151 #5151D1 #D15151

tetradic

#51D151 #5191D1 #D151D1 #D19151

square

#51D151 #5191D1 #D151D1 #D19151

split-complementary

#51D151 #9151D1 #D15191

monochromatic

#238523 #30B530 #51D151 #81DE81 #B2EBB2

Accessibility & contrast

On white

1.98

#51D151 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.59

#51D151 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D151

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D151	#FFFFFF	#000000	##000000
##51D151	1.00	1.98	10.59	10.59
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.59	21.00	1.00	1.00
##000000	10.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BF43

Deuteranopia (green-blind)

#C5B45C

Tritanopia (blue-blind)

#38CBB6

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #51d151;
/* rgb */ color: rgb(81, 209, 81);
/* oklch */ color: oklch(76.3% 0.203 143.3);

Tailwind

colors: {
  custom: {
    50: '#8fe086',
    500: '#51d151',
    950: '#000000',
  },
}

SCSS

$custom: #51d151;
$custom-light: #8fe086;
$custom-dark: #000000;

JSON

{
  "hex": "#51d151",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 81
  },
  "hsl": {
    "h": 120,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.76268,
    "c": 0.2031,
    "h": 143.3
  },
  "luminance": 0.47944
}

Semantic roles & 50–950 ramp

primary

#51D151

secondary

#D9A5D9

accent

#46E1E1

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0E150B

muted

#7E837C

Preview Lab

Preview with #51D151

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

Preview Lab → · Contrast checker → · Palette generator →