#51B239#51B239

#51B239 is a light, vivid green. Relative luminance 0.339; OKLCH L 68.0% C 0.182 H 140.0°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#51B239
RGB	rgb(81, 178, 57)
HSL	hsl(108, 51%, 46%)
HSV	hsv(108, 68%, 70%)
CMYK	cmyk(54.5%, 0%, 68%, 30.2%)
CIE-LAB	lab(64.87, -50.93, 51.18)
CIE-LCH	lch(64.87, 72.20, 134.86°)
OKLab	oklab(68.02% -0.1397 0.1174)
OKLCH	oklch(68.02% 0.182 140)
XYZ	xyz(20.0514, 33.8839, 9.3537)
Luminance	0.3389 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B239 #9A39B2

analogous

#8DB239 #51B239 #39B25D

triadic

#51B239 #3951B2 #B23951

tetradic

#51B239 #398DB2 #9A39B2 #B25D39

square

#51B239 #398DB2 #9A39B2 #B25D39

split-complementary

#51B239 #5D39B2 #B2398D

monochromatic

#27551B #3C842A #51B239 #73CB5D #9BDA8B

Accessibility & contrast

On white

2.70

#51B239 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#51B239 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B239

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B239	#FFFFFF	#000000	##000000
##51B239	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A228

Deuteranopia (green-blind)

#AA9A44

Tritanopia (blue-blind)

#46AC99

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #51b239;
/* rgb */ color: rgb(81, 178, 57);
/* oklch */ color: oklch(68.0% 0.182 140.0);

Tailwind

colors: {
  custom: {
    50: '#8bca75',
    500: '#51b239',
    950: '#000000',
  },
}

SCSS

$custom: #51b239;
$custom-light: #8bca75;
$custom-dark: #000000;

JSON

{
  "hex": "#51b239",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 57
  },
  "hsl": {
    "h": 108.099,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.68019,
    "c": 0.18247,
    "h": 140
  },
  "luminance": 0.33886
}

Semantic roles & 50–950 ramp

primary

#51B239

secondary

#B782C4

accent

#4DDBBF

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1309

muted

#7E827B

Preview Lab

Preview with #51B239

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

Preview Lab → · Contrast checker → · Palette generator →