#51A222#51A222

#51A222 is a light, vivid yellow-green. Relative luminance 0.277; OKLCH L 63.6% C 0.177 H 136.9°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#51A222
RGB	rgb(81, 162, 34)
HSL	hsl(98, 65%, 38%)
HSV	hsv(98, 79%, 64%)
CMYK	cmyk(50%, 0%, 79%, 36.5%)
CIE-LAB	lab(59.62, -46.45, 54.33)
CIE-LCH	lch(59.62, 71.49, 130.53°)
OKLab	oklab(63.65% -0.1291 0.1208)
OKLCH	oklch(63.65% 0.177 136.9)
XYZ	xyz(16.6019, 27.7043, 5.9857)
Luminance	0.2771 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A222 #7322A2

analogous

#91A222 #51A222 #22A233

triadic

#51A222 #2251A2 #A22251

tetradic

#51A222 #2291A2 #7322A2 #A23322

square

#51A222 #2291A2 #7322A2 #A23322

split-complementary

#51A222 #3322A2 #A22291

monochromatic

#1E3D0D #386F17 #51A222 #6BD32E #8FDE61

Accessibility & contrast

On white

3.21

#51A222 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#51A222 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A222

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A222	#FFFFFF	#000000	##000000
##51A222	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A89400

Deuteranopia (green-blind)

#9D8D30

Tritanopia (blue-blind)

#4C9C8A

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #51a222;
/* rgb */ color: rgb(81, 162, 34);
/* oklch */ color: oklch(63.6% 0.177 136.9);

Tailwind

colors: {
  custom: {
    50: '#8abe68',
    500: '#51a222',
    950: '#000000',
  },
}

SCSS

$custom: #51a222;
$custom-light: #8abe68;
$custom-dark: #000000;

JSON

{
  "hex": "#51a222",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 34
  },
  "hsl": {
    "h": 97.969,
    "s": 65.306,
    "l": 38.431
  },
  "oklch": {
    "l": 0.63648,
    "c": 0.17678,
    "h": 136.9
  },
  "luminance": 0.27705
}

Semantic roles & 50–950 ramp

primary

#51A222

secondary

#9D5DC3

accent

#40E8AA

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A222

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

Preview Lab → · Contrast checker → · Palette generator →