#51C540#51C540

#51C540 is a light, highly saturated green. Relative luminance 0.421; OKLCH L 73.0% C 0.201 H 141.2°. Best body text is #000000 at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#51C540
RGB	rgb(81, 197, 64)
HSL	hsl(112, 53%, 51%)
HSV	hsv(112, 68%, 77%)
CMYK	cmyk(58.9%, 0%, 67.5%, 22.7%)
CIE-LAB	lab(70.91, -57.32, 54.79)
CIE-LCH	lch(70.91, 79.30, 136.29°)
OKLab	oklab(73.01% -0.1566 0.1258)
OKLCH	oklch(73.01% 0.201 141.2)
XYZ	xyz(24.2838, 42.0498, 11.6862)
Luminance	0.4205 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C540 #B440C5

analogous

#93C540 #51C540 #40C571

triadic

#51C540 #4051C5 #C54051

tetradic

#51C540 #4093C5 #B440C5 #C57140

square

#51C540 #4093C5 #B440C5 #C57140

split-complementary

#51C540 #7140C5 #C54093

monochromatic

#2A6A20 #3C992F #51C540 #7CD36F #A7E29E

Accessibility & contrast

On white

2.23

#51C540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.41

#51C540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C540

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C540	#FFFFFF	#000000	##000000
##51C540	1.00	2.23	9.41	9.41
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.41	21.00	1.00	1.00
##000000	9.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAB32D

Deuteranopia (green-blind)

#BBAA4C

Tritanopia (blue-blind)

#40BFAA

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #51c540;
/* rgb */ color: rgb(81, 197, 64);
/* oklch */ color: oklch(73.0% 0.201 141.2);

Tailwind

colors: {
  custom: {
    50: '#8ed77b',
    500: '#51c540',
    950: '#000000',
  },
}

SCSS

$custom: #51c540;
$custom-light: #8ed77b;
$custom-dark: #000000;

JSON

{
  "hex": "#51c540",
  "rgb": {
    "r": 81,
    "g": 197,
    "b": 64
  },
  "hsl": {
    "h": 112.331,
    "s": 53.414,
    "l": 51.176
  },
  "oklch": {
    "l": 0.73014,
    "c": 0.20087,
    "h": 141.2
  },
  "luminance": 0.42052
}

Semantic roles & 50–950 ramp

primary

#51C540

secondary

#C693CE

accent

#4BDDCA

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0D140A

muted

#7E837C

Preview Lab

Preview with #51C540

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

Preview Lab → · Contrast checker → · Palette generator →