#51AD22#51AD22

#51AD22 is a light, vivid yellow-green. Relative luminance 0.318; OKLCH L 66.5% C 0.190 H 137.7°. Best body text is #000000 at 7.35:1 contrast (WCAG AA passes).

Color values

HEX#51AD22
RGBrgb(81, 173, 34)
HSLhsl(100, 67%, 41%)
HSVhsv(100, 80%, 68%)
CMYKcmyk(53.2%, 0%, 80.3%, 32.2%)
CIE-LABlab(63.14, -50.69, 57.64)
CIE-LCHlch(63.14, 76.76, 131.33°)
OKLaboklab(66.54% -0.1405 0.1277)
OKLCHoklch(66.54% 0.19 137.7)
XYZxyz(18.6250, 31.7505, 6.6601)
Luminance0.3175 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51AD22 #7E22AD
analogous
#96AD22 #51AD22 #22AD38
triadic
#51AD22 #2251AD #AD2251
tetradic
#51AD22 #2296AD #7E22AD #AD3822
square
#51AD22 #2296AD #7E22AD #AD3822
split-complementary
#51AD22 #3822AD #AD2296
monochromatic
#21470E #397A18 #51AD22 #6CD735 #91E168

Accessibility & contrast

On white

2.86
#51AD22 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.35
#51AD22 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AD22
7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51AD22#FFFFFF#000000##000000
##51AD221.002.867.357.35
#FFFFFF2.861.0021.0021.00
#0000007.3521.001.001.00
##0000007.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#B39E00
Deuteranopia (green-blind)
#A79632
Tritanopia (blue-blind)
#4AA794
Achromatopsia (no color)
#999999

Design tokens & code

CSS
--color: #51ad22;
/* rgb */ color: rgb(81, 173, 34);
/* oklch */ color: oklch(66.5% 0.190 137.7);
Tailwind
colors: {
  custom: {
    50: '#8cc669',
    500: '#51ad22',
    950: '#000000',
  },
}
SCSS
$custom: #51ad22;
$custom-light: #8cc669;
$custom-dark: #000000;
JSON
{
  "hex": "#51ad22",
  "rgb": {
    "r": 81,
    "g": 173,
    "b": 34
  },
  "hsl": {
    "h": 99.712,
    "s": 67.15,
    "l": 40.588
  },
  "oklch": {
    "l": 0.66543,
    "c": 0.18983,
    "h": 137.7
  },
  "luminance": 0.31752
}

Semantic roles & 50–950 ramp

primary
#51AD22
secondary
#A564C7
accent
#3EEAB0
background
#F9FCF6
surface
#F1F8EC
border
#CBD1C7
text
#0D1307
muted
#7E827A

Preview Lab

Preview with #51AD22

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

Preview Lab → · Contrast checker → · Palette generator →

#51AD22 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva