#51B82B#51B82B

#51B82B is a light, vivid green. Relative luminance 0.362; OKLCH L 69.5% C 0.198 H 139.0°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#51B82B
RGB	rgb(81, 184, 43)
HSL	hsl(104, 62%, 45%)
HSV	hsv(104, 77%, 72%)
CMYK	cmyk(56%, 0%, 76.6%, 27.8%)
CIE-LAB	lab(66.67, -54.23, 58.19)
CIE-LCH	lch(66.67, 79.55, 132.98°)
OKLab	oklab(69.48% -0.1495 0.1301)
OKLCH	oklch(69.48% 0.198 139)
XYZ	xyz(20.9690, 36.2030, 8.1679)
Luminance	0.3620 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B82B #922BB8

analogous

#98B82B #51B82B #2BB84C

triadic

#51B82B #2B51B8 #B82B51

tetradic

#51B82B #2B98B8 #922BB8 #B84C2B

square

#51B82B #2B98B8 #922BB8 #B84C2B

split-complementary

#51B82B #4C2BB8 #B82B98

monochromatic

#255514 #3B861F #51B82B #70D54B #98E17D

Accessibility & contrast

On white

2.55

#51B82B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#51B82B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B82B

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B82B	#FFFFFF	#000000	##000000
##51B82B	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA707

Deuteranopia (green-blind)

#B19F3A

Tritanopia (blue-blind)

#47B29D

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51b82b;
/* rgb */ color: rgb(81, 184, 43);
/* oklch */ color: oklch(69.5% 0.198 139.0);

Tailwind

colors: {
  custom: {
    50: '#8dce6f',
    500: '#51b82b',
    950: '#000000',
  },
}

SCSS

$custom: #51b82b;
$custom-light: #8dce6f;
$custom-dark: #000000;

JSON

{
  "hex": "#51b82b",
  "rgb": {
    "r": 81,
    "g": 184,
    "b": 43
  },
  "hsl": {
    "h": 103.83,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.69477,
    "c": 0.19821,
    "h": 139
  },
  "luminance": 0.36205
}

Semantic roles & 50–950 ramp

primary

#51B82B

secondary

#B376C9

accent

#43E5B9

background

#F9FCF7

surface

#F1F9ED

border

#CBD2C8

text

#0D1408

muted

#7E827B

Preview Lab

Preview with #51B82B

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

Preview Lab → · Contrast checker → · Palette generator →