#51B02B#51B02B

#51B02B is a light, vivid green. Relative luminance 0.330; OKLCH L 67.4% C 0.189 H 138.5°. Best body text is #000000 at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#51B02B
RGB	rgb(81, 176, 43)
HSL	hsl(103, 61%, 43%)
HSV	hsv(103, 76%, 69%)
CMYK	cmyk(54%, 0%, 75.6%, 31%)
CIE-LAB	lab(64.14, -51.27, 55.72)
CIE-LCH	lch(64.14, 75.72, 132.62°)
OKLab	oklab(67.38% -0.1415 0.125)
OKLCH	oklch(67.38% 0.189 138.5)
XYZ	xyz(19.3540, 32.9729, 7.6296)
Luminance	0.3297 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B02B #8A2BB0

analogous

#93B02B #51B02B #2BB047

triadic

#51B02B #2B51B0 #B02B51

tetradic

#51B02B #2B93B0 #8A2BB0 #B0472B

square

#51B02B #2B93B0 #8A2BB0 #B0472B

split-complementary

#51B02B #472BB0 #B02B93

monochromatic

#244E13 #3A7F1F #51B02B #6ED246 #95DE78

Accessibility & contrast

On white

2.77

#51B02B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.59

#51B02B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B02B

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B02B	#FFFFFF	#000000	##000000
##51B02B	1.00	2.77	7.59	7.59
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.59	21.00	1.00	1.00
##000000	7.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A00D

Deuteranopia (green-blind)

#A99839

Tritanopia (blue-blind)

#48AA97

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51b02b;
/* rgb */ color: rgb(81, 176, 43);
/* oklch */ color: oklch(67.4% 0.189 138.5);

Tailwind

colors: {
  custom: {
    50: '#8cc86e',
    500: '#51b02b',
    950: '#000000',
  },
}

SCSS

$custom: #51b02b;
$custom-light: #8cc86e;
$custom-dark: #000000;

JSON

{
  "hex": "#51b02b",
  "rgb": {
    "r": 81,
    "g": 176,
    "b": 43
  },
  "hsl": {
    "h": 102.857,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.67385,
    "c": 0.1888,
    "h": 138.5
  },
  "luminance": 0.32974
}

Semantic roles & 50–950 ramp

primary

#51B02B

secondary

#AE71C6

accent

#44E4B6

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51B02B

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

Preview Lab → · Contrast checker → · Palette generator →