#51BF3B#51BF3B

#51BF3B is a light, vivid green. Relative luminance 0.393; OKLCH L 71.4% C 0.197 H 140.6°. Best body text is #000000 at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#51BF3B
RGB	rgb(81, 191, 59)
HSL	hsl(110, 53%, 49%)
HSV	hsv(110, 69%, 75%)
CMYK	cmyk(57.6%, 0%, 69.1%, 25.1%)
CIE-LAB	lab(68.99, -55.59, 54.74)
CIE-LCH	lch(68.99, 78.02, 135.44°)
OKLab	oklab(71.42% -0.1522 0.1251)
OKLCH	oklch(71.42% 0.197 140.6)
XYZ	xyz(22.8125, 39.3247, 10.5251)
Luminance	0.3933 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF3B #A93BBF

analogous

#93BF3B #51BF3B #3BBF67

triadic

#51BF3B #3B51BF #BF3B51

tetradic

#51BF3B #3B93BF #A93BBF #BF673B

square

#51BF3B #3B93BF #A93BBF #BF673B

split-complementary

#51BF3B #673BBF #BF3B93

monochromatic

#29611E #3D902D #51BF3B #79D067 #A2DF96

Accessibility & contrast

On white

2.37

#51BF3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.87

#51BF3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF3B

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF3B	#FFFFFF	#000000	##000000
##51BF3B	1.00	2.37	8.87	8.87
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.87	21.00	1.00	1.00
##000000	8.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4AE27

Deuteranopia (green-blind)

#B6A547

Tritanopia (blue-blind)

#43B9A5

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #51bf3b;
/* rgb */ color: rgb(81, 191, 59);
/* oklch */ color: oklch(71.4% 0.197 140.6);

Tailwind

colors: {
  custom: {
    50: '#8dd378',
    500: '#51bf3b',
    950: '#000000',
  },
}

SCSS

$custom: #51bf3b;
$custom-light: #8dd378;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf3b",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 59
  },
  "hsl": {
    "h": 110,
    "s": 52.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.71418,
    "c": 0.197,
    "h": 140.6
  },
  "luminance": 0.39327
}

Semantic roles & 50–950 ramp

primary

#51BF3B

secondary

#C08CCA

accent

#4CDCC4

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51BF3B

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

Preview Lab → · Contrast checker → · Palette generator →