#51CB63#51CB63

#51CB63 is a light, vivid green. Relative luminance 0.454; OKLCH L 75.0% C 0.181 H 146.2°. Best body text is #000000 at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#51CB63
RGB	rgb(81, 203, 99)
HSL	hsl(129, 54%, 56%)
HSV	hsv(129, 60%, 80%)
CMYK	cmyk(60.1%, 0%, 51.2%, 20.4%)
CIE-LAB	lab(73.13, -55.49, 41.64)
CIE-LCH	lch(73.13, 69.38, 143.11°)
OKLab	oklab(74.96% -0.1501 0.1004)
OKLCH	oklch(74.96% 0.181 146.2)
XYZ	xyz(26.9997, 45.3595, 19.1344)
Luminance	0.4536 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CB63 #CB51B9

analogous

#7CCB51 #51CB63 #51CBA0

triadic

#51CB63 #6351CB #CB6351

tetradic

#51CB63 #517CCB #CB51B9 #CBA051

square

#51CB63 #517CCB #CB51B9 #CBA051

split-complementary

#51CB63 #A051CB #CB517C

monochromatic

#257C32 #33AC45 #51CB63 #80D98D #AFE7B7

Accessibility & contrast

On white

2.08

#51CB63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.07

#51CB63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CB63

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CB63	#FFFFFF	#000000	##000000
##51CB63	1.00	2.08	10.07	10.07
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.07	21.00	1.00	1.00
##000000	10.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEBA5A

Deuteranopia (green-blind)

#BEAF6A

Tritanopia (blue-blind)

#35C6B3

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51cb63;
/* rgb */ color: rgb(81, 203, 99);
/* oklch */ color: oklch(75.0% 0.181 146.2);

Tailwind

colors: {
  custom: {
    50: '#8edc91',
    500: '#51cb63',
    950: '#000000',
  },
}

SCSS

$custom: #51cb63;
$custom-light: #8edc91;
$custom-dark: #000000;

JSON

{
  "hex": "#51cb63",
  "rgb": {
    "r": 81,
    "g": 203,
    "b": 99
  },
  "hsl": {
    "h": 128.852,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74963,
    "c": 0.18059,
    "h": 146.2
  },
  "luminance": 0.45362
}

Semantic roles & 50–950 ramp

primary

#51CB63

secondary

#D5A3CE

accent

#4AC8DD

background

#F9FDF9

surface

#F2FBF1

border

#CCD4CB

text

#0D150D

muted

#7E837E

Preview Lab

Preview with #51CB63

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

Preview Lab → · Contrast checker → · Palette generator →