#51CB40#51CB40

#51CB40 is a light, highly saturated green. Relative luminance 0.448; OKLCH L 74.6% C 0.208 H 141.3°. Best body text is #000000 at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#51CB40
RGB	rgb(81, 203, 64)
HSL	hsl(113, 57%, 52%)
HSV	hsv(113, 68%, 80%)
CMYK	cmyk(60.1%, 0%, 68.5%, 20.4%)
CIE-LAB	lab(72.78, -59.46, 56.78)
CIE-LCH	lch(72.78, 82.22, 136.32°)
OKLab	oklab(74.56% -0.1624 0.13)
OKLCH	oklch(74.56% 0.208 141.3)
XYZ	xyz(25.6734, 44.8290, 12.1494)
Luminance	0.4483 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CB40 #BA40CB

analogous

#96CB40 #51CB40 #40CB75

triadic

#51CB40 #4051CB #CB4051

tetradic

#51CB40 #4096CB #BA40CB #CB7540

square

#51CB40 #4096CB #BA40CB #CB7540

split-complementary

#51CB40 #7540CB #CB4096

monochromatic

#29721F #3AA22C #51CB40 #7DD870 #A9E5A0

Accessibility & contrast

On white

2.11

#51CB40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.97

#51CB40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CB40

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CB40	#FFFFFF	#000000	##000000
##51CB40	1.00	2.11	9.97	9.97
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.97	21.00	1.00	1.00
##000000	9.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B92C

Deuteranopia (green-blind)

#C1AF4D

Tritanopia (blue-blind)

#3EC5AF

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #51cb40;
/* rgb */ color: rgb(81, 203, 64);
/* oklch */ color: oklch(74.6% 0.208 141.3);

Tailwind

colors: {
  custom: {
    50: '#8fdc7c',
    500: '#51cb40',
    950: '#000000',
  },
}

SCSS

$custom: #51cb40;
$custom-light: #8fdc7c;
$custom-dark: #000000;

JSON

{
  "hex": "#51cb40",
  "rgb": {
    "r": 81,
    "g": 203,
    "b": 64
  },
  "hsl": {
    "h": 112.662,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.74562,
    "c": 0.208,
    "h": 141.3
  },
  "luminance": 0.44831
}

Semantic roles & 50–950 ramp

primary

#51CB40

secondary

#CA95D2

accent

#47E0CE

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51CB40

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

Preview Lab → · Contrast checker → · Palette generator →