#51C840#51C840

#51C840 is a light, highly saturated green. Relative luminance 0.434; OKLCH L 73.8% C 0.204 H 141.3°. Best body text is #000000 at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#51C840
RGB	rgb(81, 200, 64)
HSL	hsl(113, 55%, 52%)
HSV	hsv(113, 68%, 78%)
CMYK	cmyk(59.5%, 0%, 68%, 21.6%)
CIE-LAB	lab(71.84, -58.40, 55.79)
CIE-LCH	lch(71.84, 80.76, 136.31°)
OKLab	oklab(73.79% -0.1595 0.1279)
OKLCH	oklch(73.79% 0.204 141.3)
XYZ	xyz(24.9718, 43.4258, 11.9155)
Luminance	0.4343 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C840 #B740C8

analogous

#95C840 #51C840 #40C873

triadic

#51C840 #4051C8 #C84051

tetradic

#51C840 #4095C8 #B740C8 #C87340

square

#51C840 #4095C8 #B740C8 #C87340

split-complementary

#51C840 #7340C8 #C84095

monochromatic

#296E20 #3B9D2D #51C840 #7CD670 #A8E39F

Accessibility & contrast

On white

2.17

#51C840 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.69

#51C840 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C840

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C840	#FFFFFF	#000000	##000000
##51C840	1.00	2.17	9.69	9.69
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.69	21.00	1.00	1.00
##000000	9.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CDB62D

Deuteranopia (green-blind)

#BEAC4D

Tritanopia (blue-blind)

#3FC2AD

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #51c840;
/* rgb */ color: rgb(81, 200, 64);
/* oklch */ color: oklch(73.8% 0.204 141.3);

Tailwind

colors: {
  custom: {
    50: '#8fda7c',
    500: '#51c840',
    950: '#000000',
  },
}

SCSS

$custom: #51c840;
$custom-light: #8fda7c;
$custom-dark: #000000;

JSON

{
  "hex": "#51c840",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 64
  },
  "hsl": {
    "h": 112.5,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.73789,
    "c": 0.20444,
    "h": 141.3
  },
  "luminance": 0.43428
}

Semantic roles & 50–950 ramp

primary

#51C840

secondary

#C894D0

accent

#49DFCC

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #51C840

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

Preview Lab → · Contrast checker → · Palette generator →