#51C243#51C243

#51C243 is a light, vivid green. Relative luminance 0.407; OKLCH L 72.3% C 0.195 H 141.5°. Best body text is #000000 at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#51C243
RGB	rgb(81, 194, 67)
HSL	hsl(113, 51%, 51%)
HSV	hsv(113, 65%, 76%)
CMYK	cmyk(58.2%, 0%, 65.5%, 23.9%)
CIE-LAB	lab(69.99, -55.95, 52.58)
CIE-LCH	lch(69.99, 76.78, 136.78°)
OKLab	oklab(72.27% -0.1527 0.1214)
OKLCH	oklch(72.27% 0.195 141.5)
XYZ	xyz(23.6971, 40.7360, 11.9232)
Luminance	0.4074 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C243 #B443C2

analogous

#90C243 #51C243 #43C274

triadic

#51C243 #4351C2 #C24351

tetradic

#51C243 #4390C2 #B443C2 #C27443

square

#51C243 #4390C2 #B443C2 #C27443

split-complementary

#51C243 #7443C2 #C24390

monochromatic

#2A6922 #3C9731 #51C243 #7CD171 #A7E09F

Accessibility & contrast

On white

2.30

#51C243 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.15

#51C243 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C243

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C243	#FFFFFF	#000000	##000000
##51C243	1.00	2.30	9.15	9.15
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.15	21.00	1.00	1.00
##000000	9.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B133

Deuteranopia (green-blind)

#B8A74E

Tritanopia (blue-blind)

#40BCA8

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51c243;
/* rgb */ color: rgb(81, 194, 67);
/* oklch */ color: oklch(72.3% 0.195 141.5);

Tailwind

colors: {
  custom: {
    50: '#8dd57d',
    500: '#51c243',
    950: '#000000',
  },
}

SCSS

$custom: #51c243;
$custom-light: #8dd57d;
$custom-dark: #000000;

JSON

{
  "hex": "#51c243",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 67
  },
  "hsl": {
    "h": 113.386,
    "s": 51.004,
    "l": 51.176
  },
  "oklch": {
    "l": 0.72267,
    "c": 0.19514,
    "h": 141.5
  },
  "luminance": 0.40738
}

Semantic roles & 50–950 ramp

primary

#51C243

secondary

#C694CC

accent

#4DDACB

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0D140A

muted

#7E837C

Preview Lab

Preview with #51C243

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

Preview Lab → · Contrast checker → · Palette generator →