#51A822#51A822

#51A822 is a light, vivid yellow-green. Relative luminance 0.299; OKLCH L 65.2% C 0.184 H 137.4°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#51A822
RGB	rgb(81, 168, 34)
HSL	hsl(99, 66%, 40%)
HSV	hsv(99, 80%, 66%)
CMYK	cmyk(51.8%, 0%, 79.8%, 34.1%)
CIE-LAB	lab(61.54, -48.79, 56.15)
CIE-LCH	lch(61.54, 74.38, 130.99°)
OKLab	oklab(65.23% -0.1353 0.1246)
OKLCH	oklch(65.23% 0.184 137.4)
XYZ	xyz(17.6841, 29.8688, 6.3464)
Luminance	0.2987 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A822 #7922A8

analogous

#94A822 #51A822 #22A836

triadic

#51A822 #2251A8 #A82251

tetradic

#51A822 #2294A8 #7922A8 #A83622

square

#51A822 #2294A8 #7922A8 #A83622

split-complementary

#51A822 #3622A8 #A82294

monochromatic

#20420D #387518 #51A822 #6BD532 #90E065

Accessibility & contrast

On white

3.01

#51A822 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#51A822 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A822

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A822	#FFFFFF	#000000	##000000
##51A822	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AE9900

Deuteranopia (green-blind)

#A29232

Tritanopia (blue-blind)

#4BA28F

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #51a822;
/* rgb */ color: rgb(81, 168, 34);
/* oklch */ color: oklch(65.2% 0.184 137.4);

Tailwind

colors: {
  custom: {
    50: '#8bc269',
    500: '#51a822',
    950: '#000000',
  },
}

SCSS

$custom: #51a822;
$custom-light: #8bc269;
$custom-dark: #000000;

JSON

{
  "hex": "#51a822",
  "rgb": {
    "r": 81,
    "g": 168,
    "b": 34
  },
  "hsl": {
    "h": 98.955,
    "s": 66.337,
    "l": 39.608
  },
  "oklch": {
    "l": 0.65229,
    "c": 0.18395,
    "h": 137.4
  },
  "luminance": 0.2987
}

Semantic roles & 50–950 ramp

primary

#51A822

secondary

#A261C5

accent

#3FE9AD

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1207

muted

#7E817A

Preview Lab

Preview with #51A822

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

Preview Lab → · Contrast checker → · Palette generator →