#51BF39#51BF39

#51BF39 is a light, vivid green. Relative luminance 0.393; OKLCH L 71.4% C 0.198 H 140.4°. Best body text is #000000 at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#51BF39
RGB	rgb(81, 191, 57)
HSL	hsl(109, 54%, 49%)
HSV	hsv(109, 70%, 75%)
CMYK	cmyk(57.6%, 0%, 70.2%, 25.1%)
CIE-LAB	lab(68.97, -55.76, 55.50)
CIE-LCH	lch(68.97, 78.67, 135.13°)
OKLab	oklab(71.4% -0.1528 0.1264)
OKLCH	oklch(71.4% 0.198 140.4)
XYZ	xyz(22.7616, 39.3043, 10.2571)
Luminance	0.3931 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF39 #A739BF

analogous

#94BF39 #51BF39 #39BF64

triadic

#51BF39 #3951BF #BF3951

tetradic

#51BF39 #3994BF #A739BF #BF6439

square

#51BF39 #3994BF #A739BF #BF6439

split-complementary

#51BF39 #6439BF #BF3994

monochromatic

#29611D #3D902B #51BF39 #78D164 #A1DF93

Accessibility & contrast

On white

2.37

#51BF39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.86

#51BF39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF39

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF39	#FFFFFF	#000000	##000000
##51BF39	1.00	2.37	8.86	8.86
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.86	21.00	1.00	1.00
##000000	8.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AE24

Deuteranopia (green-blind)

#B6A546

Tritanopia (blue-blind)

#43B9A4

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #51bf39;
/* rgb */ color: rgb(81, 191, 57);
/* oklch */ color: oklch(71.4% 0.198 140.4);

Tailwind

colors: {
  custom: {
    50: '#8dd377',
    500: '#51bf39',
    950: '#000000',
  },
}

SCSS

$custom: #51bf39;
$custom-light: #8dd377;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf39",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 57
  },
  "hsl": {
    "h": 109.254,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.71401,
    "c": 0.1983,
    "h": 140.4
  },
  "luminance": 0.39306
}

Semantic roles & 50–950 ramp

primary

#51BF39

secondary

#BF8ACA

accent

#4ADDC3

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51BF39

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

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