#51BD39#51BD39

#51BD39 is a light, vivid green. Relative luminance 0.384; OKLCH L 70.9% C 0.196 H 140.3°. Best body text is #000000 at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#51BD39
RGB	rgb(81, 189, 57)
HSL	hsl(109, 54%, 48%)
HSV	hsv(109, 70%, 74%)
CMYK	cmyk(57.1%, 0%, 69.8%, 25.9%)
CIE-LAB	lab(68.34, -55.03, 54.84)
CIE-LCH	lch(68.34, 77.69, 135.10°)
OKLab	oklab(70.88% -0.1508 0.125)
OKLCH	oklch(70.88% 0.196 140.3)
XYZ	xyz(22.3284, 38.4380, 10.1127)
Luminance	0.3844 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BD39 #A539BD

analogous

#93BD39 #51BD39 #39BD63

triadic

#51BD39 #3951BD #BD3951

tetradic

#51BD39 #3993BD #A539BD #BD6339

square

#51BD39 #3993BD #A539BD #BD6339

split-complementary

#51BD39 #6339BD #BD3993

monochromatic

#295F1D #3D8E2B #51BD39 #77D063 #A0DE92

Accessibility & contrast

On white

2.42

#51BD39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.69

#51BD39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BD39

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BD39	#FFFFFF	#000000	##000000
##51BD39	1.00	2.42	8.69	8.69
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.69	21.00	1.00	1.00
##000000	8.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AC25

Deuteranopia (green-blind)

#B4A346

Tritanopia (blue-blind)

#43B7A3

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #51bd39;
/* rgb */ color: rgb(81, 189, 57);
/* oklch */ color: oklch(70.9% 0.196 140.3);

Tailwind

colors: {
  custom: {
    50: '#8dd277',
    500: '#51bd39',
    950: '#000000',
  },
}

SCSS

$custom: #51bd39;
$custom-light: #8dd277;
$custom-dark: #000000;

JSON

{
  "hex": "#51bd39",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 57
  },
  "hsl": {
    "h": 109.091,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.70882,
    "c": 0.19591,
    "h": 140.3
  },
  "luminance": 0.3844
}

Semantic roles & 50–950 ramp

primary

#51BD39

secondary

#BD89C9

accent

#4BDDC2

background

#F9FDF7

surface

#F1FAED

border

#CBD3C8

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51BD39

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

Preview Lab → · Contrast checker → · Palette generator →