#51BB3D#51BB3D

#51BB3D is a light, vivid green. Relative luminance 0.376; OKLCH L 70.4% C 0.191 H 140.7°. Best body text is #000000 at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#51BB3D
RGB	rgb(81, 187, 61)
HSL	hsl(110, 51%, 49%)
HSV	hsv(110, 67%, 73%)
CMYK	cmyk(56.7%, 0%, 67.4%, 26.7%)
CIE-LAB	lab(67.74, -53.94, 52.62)
CIE-LCH	lch(67.74, 75.36, 135.71°)
OKLab	oklab(70.4% -0.1476 0.1209)
OKLCH	oklch(70.4% 0.191 140.7)
XYZ	xyz(22.0050, 37.6250, 10.5167)
Luminance	0.3763 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB3D #A73DBB

analogous

#90BB3D #51BB3D #3DBB68

triadic

#51BB3D #3D51BB #BB3D51

tetradic

#51BB3D #3D90BB #A73DBB #BB683D

square

#51BB3D #3D90BB #A73DBB #BB683D

split-complementary

#51BB3D #683DBB #BB3D90

monochromatic

#295F1F #3D8D2E #51BB3D #78CE68 #A1DD96

Accessibility & contrast

On white

2.46

#51BB3D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.53

#51BB3D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB3D

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB3D	#FFFFFF	#000000	##000000
##51BB3D	1.00	2.46	8.53	8.53
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.53	21.00	1.00	1.00
##000000	8.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0AB2C

Deuteranopia (green-blind)

#B2A248

Tritanopia (blue-blind)

#43B5A1

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51bb3d;
/* rgb */ color: rgb(81, 187, 61);
/* oklch */ color: oklch(70.4% 0.191 140.7);

Tailwind

colors: {
  custom: {
    50: '#8cd079',
    500: '#51bb3d',
    950: '#000000',
  },
}

SCSS

$custom: #51bb3d;
$custom-light: #8cd079;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb3d",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 61
  },
  "hsl": {
    "h": 110.476,
    "s": 50.806,
    "l": 48.627
  },
  "oklch": {
    "l": 0.70398,
    "c": 0.19081,
    "h": 140.7
  },
  "luminance": 0.37627
}

Semantic roles & 50–950 ramp

primary

#51BB3D

secondary

#BF8CC8

accent

#4EDAC4

background

#F9FCF7

surface

#F1F9EE

border

#CBD2C9

text

#0D1409

muted

#7E827B

Preview Lab

Preview with #51BB3D

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

Preview Lab → · Contrast checker → · Palette generator →