#51B422#51B422

#51B422 is a light, vivid green. Relative luminance 0.345; OKLCH L 68.4% C 0.198 H 138.2°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#51B422
RGB	rgb(81, 180, 34)
HSL	hsl(101, 68%, 42%)
HSV	hsv(101, 81%, 71%)
CMYK	cmyk(55%, 0%, 81.1%, 29.4%)
CIE-LAB	lab(65.36, -53.29, 59.71)
CIE-LCH	lch(65.36, 80.03, 131.75°)
OKLab	oklab(68.38% -0.1474 0.132)
OKLCH	oklch(68.38% 0.198 138.2)
XYZ	xyz(20.0026, 34.5057, 7.1193)
Luminance	0.3451 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B422 #8522B4

analogous

#9AB422 #51B422 #22B43C

triadic

#51B422 #2251B4 #B42251

tetradic

#51B422 #229AB4 #8522B4 #B43C22

square

#51B422 #229AB4 #8522B4 #B43C22

split-complementary

#51B422 #3C22B4 #B4229A

monochromatic

#234D0F #3A8118 #51B422 #6DDA3A #93E36D

Accessibility & contrast

On white

2.66

#51B422 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#51B422 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B422

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B422	#FFFFFF	#000000	##000000
##51B422	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)

#AD9C34

Tritanopia (blue-blind)

#48AE99

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51b422;
/* rgb */ color: rgb(81, 180, 34);
/* oklch */ color: oklch(68.4% 0.198 138.2);

Tailwind

colors: {
  custom: {
    50: '#8dcb6a',
    500: '#51b422',
    950: '#000000',
  },
}

SCSS

$custom: #51b422;
$custom-light: #8dcb6a;
$custom-dark: #000000;

JSON

{
  "hex": "#51b422",
  "rgb": {
    "r": 81,
    "g": 180,
    "b": 34
  },
  "hsl": {
    "h": 100.685,
    "s": 68.224,
    "l": 41.961
  },
  "oklch": {
    "l": 0.68379,
    "c": 0.19792,
    "h": 138.2
  },
  "luminance": 0.34507
}

Semantic roles & 50–950 ramp

primary

#51B422

secondary

#AA68CA

accent

#3DEBB3

background

#F9FCF6

surface

#F1F9EC

border

#CBD2C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51B422

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

Preview Lab → · Contrast checker → · Palette generator →