#51C237#51C237

#51C237 is a light, highly saturated green. Relative luminance 0.406; OKLCH L 72.2% C 0.203 H 140.3°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#51C237
RGB	rgb(81, 194, 55)
HSL	hsl(109, 56%, 49%)
HSV	hsv(109, 72%, 76%)
CMYK	cmyk(58.2%, 0%, 71.6%, 23.9%)
CIE-LAB	lab(69.90, -57.00, 57.21)
CIE-LCH	lch(69.90, 80.76, 134.89°)
OKLab	oklab(72.16% -0.1563 0.1297)
OKLCH	oklch(72.16% 0.203 140.3)
XYZ	xyz(23.3737, 40.6067, 10.2198)
Luminance	0.4061 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C237 #A837C2

analogous

#97C237 #51C237 #37C263

triadic

#51C237 #3751C2 #C23751

tetradic

#51C237 #3797C2 #A837C2 #C26337

square

#51C237 #3797C2 #A837C2 #C26337

split-complementary

#51C237 #6337C2 #C23797

monochromatic

#29631C #3D9229 #51C237 #78D363 #A1E093

Accessibility & contrast

On white

2.30

#51C237 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.12

#51C237 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C237

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C237	#FFFFFF	#000000	##000000
##51C237	1.00	2.30	9.12	9.12
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.12	21.00	1.00	1.00
##000000	9.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B11F

Deuteranopia (green-blind)

#B9A745

Tritanopia (blue-blind)

#42BCA7

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51c237;
/* rgb */ color: rgb(81, 194, 55);
/* oklch */ color: oklch(72.2% 0.203 140.3);

Tailwind

colors: {
  custom: {
    50: '#8ed576',
    500: '#51c237',
    950: '#000000',
  },
}

SCSS

$custom: #51c237;
$custom-light: #8ed576;
$custom-dark: #000000;

JSON

{
  "hex": "#51c237",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 55
  },
  "hsl": {
    "h": 108.777,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.72163,
    "c": 0.20309,
    "h": 140.3
  },
  "luminance": 0.40609
}

Semantic roles & 50–950 ramp

primary

#51C237

secondary

#BF89CB

accent

#49DFC3

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51C237

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

Preview Lab → · Contrast checker → · Palette generator →