#51BF28#51BF28

#51BF28 is a light, highly saturated green. Relative luminance 0.392; OKLCH L 71.3% C 0.208 H 139.1°. Best body text is #000000 at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#51BF28
RGB	rgb(81, 191, 40)
HSL	hsl(104, 65%, 45%)
HSV	hsv(104, 79%, 75%)
CMYK	cmyk(57.6%, 0%, 79.1%, 25.1%)
CIE-LAB	lab(68.87, -56.94, 61.23)
CIE-LCH	lch(68.87, 83.62, 132.92°)
OKLab	oklab(71.28% -0.1569 0.1361)
OKLCH	oklch(71.28% 0.208 139.1)
XYZ	xyz(22.4062, 39.1622, 8.3854)
Luminance	0.3916 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF28 #9628BF

analogous

#9CBF28 #51BF28 #28BF4B

triadic

#51BF28 #2851BF #BF2851

tetradic

#51BF28 #289CBF #9628BF #BF4B28

square

#51BF28 #289CBF #9628BF #BF4B28

split-complementary

#51BF28 #4B28BF #BF289C

monochromatic

#265A13 #3C8C1D #51BF28 #72D94B #99E47E

Accessibility & contrast

On white

2.38

#51BF28 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.83

#51BF28 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF28

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF28	#FFFFFF	#000000	##000000
##51BF28	1.00	2.38	8.83	8.83
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.83	21.00	1.00	1.00
##000000	8.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AE00

Deuteranopia (green-blind)

#B7A53A

Tritanopia (blue-blind)

#45B8A3

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #51bf28;
/* rgb */ color: rgb(81, 191, 40);
/* oklch */ color: oklch(71.3% 0.208 139.1);

Tailwind

colors: {
  custom: {
    50: '#8ed36e',
    500: '#51bf28',
    950: '#000000',
  },
}

SCSS

$custom: #51bf28;
$custom-light: #8ed36e;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf28",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 40
  },
  "hsl": {
    "h": 103.709,
    "s": 65.368,
    "l": 45.294
  },
  "oklch": {
    "l": 0.71284,
    "c": 0.20771,
    "h": 139.1
  },
  "luminance": 0.39164
}

Semantic roles & 50–950 ramp

primary

#51BF28

secondary

#B577CC

accent

#3FE8BA

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0D1408

muted

#7E837B

Preview Lab

Preview with #51BF28

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

Preview Lab → · Contrast checker → · Palette generator →