#51B424#51B424

#51B424 is a light, vivid green. Relative luminance 0.345; OKLCH L 68.4% C 0.197 H 138.3°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#51B424
RGB	rgb(81, 180, 36)
HSL	hsl(101, 67%, 42%)
HSV	hsv(101, 80%, 71%)
CMYK	cmyk(55%, 0%, 80%, 29.4%)
CIE-LAB	lab(65.37, -53.18, 59.14)
CIE-LCH	lch(65.37, 79.53, 131.97°)
OKLab	oklab(68.39% -0.147 0.1311)
OKLCH	oklch(68.39% 0.197 138.3)
XYZ	xyz(20.0323, 34.5176, 7.2757)
Luminance	0.3452 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B424 #8724B4

analogous

#99B424 #51B424 #24B43F

triadic

#51B424 #2451B4 #B42451

tetradic

#51B424 #2499B4 #8724B4 #B43F24

square

#51B424 #2499B4 #8724B4 #B43F24

split-complementary

#51B424 #3F24B4 #B42499

monochromatic

#234E10 #3A811A #51B424 #6ED83D #94E270

Accessibility & contrast

On white

2.66

#51B424 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#51B424 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B424

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B424	#FFFFFF	#000000	##000000
##51B424	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#AD9C35

Tritanopia (blue-blind)

#48AE9A

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51b424;
/* rgb */ color: rgb(81, 180, 36);
/* oklch */ color: oklch(68.4% 0.197 138.3);

Tailwind

colors: {
  custom: {
    50: '#8ccb6b',
    500: '#51b424',
    950: '#000000',
  },
}

SCSS

$custom: #51b424;
$custom-light: #8ccb6b;
$custom-dark: #000000;

JSON

{
  "hex": "#51b424",
  "rgb": {
    "r": 81,
    "g": 180,
    "b": 36
  },
  "hsl": {
    "h": 101.25,
    "s": 66.667,
    "l": 42.353
  },
  "oklch": {
    "l": 0.6839,
    "c": 0.19702,
    "h": 138.3
  },
  "luminance": 0.34519
}

Semantic roles & 50–950 ramp

primary

#51B424

secondary

#AC6BC9

accent

#3EEAB4

background

#F9FCF6

surface

#F1F9EC

border

#CBD2C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51B424

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

Preview Lab → · Contrast checker → · Palette generator →