#51B72A#51B72A
#51B72A is a light, vivid green. Relative luminance 0.358; OKLCH L 69.2% C 0.198 H 138.8°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).
Color values
| HEX | #51B72A |
|---|---|
| RGB | rgb(81, 183, 42) |
| HSL | hsl(103, 63%, 44%) |
| HSV | hsv(103, 77%, 72%) |
| CMYK | cmyk(55.7%, 0%, 77%, 28.2%) |
| CIE-LAB | lab(66.35, -53.93, 58.21) |
| CIE-LCH | lch(66.35, 79.35, 132.82°) |
| OKLab | oklab(69.21% -0.1487 0.13) |
| OKLCH | oklch(69.21% 0.198 138.8) |
| XYZ | xyz(20.7439, 35.7817, 8.0035) |
| Luminance | 0.3578 (WCAG relative) |
| Temperature | warm |
| Family | green |
Closest named colors
Kelly Green
#4CBB17
ΔE00 1.73
Leafy Green
#51B73B
ΔE00 1.78
Frog Green
#58BC08
ΔE00 2.83
Kermit Green
#5CB200
ΔE00 3.26
Grass
#5CAC2D
ΔE00 3.34
Nasty Green
#70B23F
ΔE00 4.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51B72A #902AB7
analogous
#98B72A #51B72A #2AB749
triadic
#51B72A #2A51B7 #B72A51
tetradic
#51B72A #2A98B7 #902AB7 #B7492A
square
#51B72A #2A98B7 #902AB7 #B7492A
split-complementary
#51B72A #492AB7 #B72A98
monochromatic
#255313 #3B851F #51B72A #70D549 #97E17B
Accessibility & contrast
On white
2.57
#51B72A on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.16
#51B72A on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51B72A
8.16:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51B72A | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51B72A | 1.00 | 2.57 | 8.16 | 8.16 |
| #FFFFFF | 2.57 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.16 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.16 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#BDA704
Deuteranopia (green-blind)
#B09E3A
Tritanopia (blue-blind)
#47B19D
Achromatopsia (no color)
#A1A1A1
Design tokens & code
CSS
--color: #51b72a; /* rgb */ color: rgb(81, 183, 42); /* oklch */ color: oklch(69.2% 0.198 138.8);
Tailwind
colors: {
custom: {
50: '#8dcd6e',
500: '#51b72a',
950: '#000000',
},
}SCSS
$custom: #51b72a; $custom-light: #8dcd6e; $custom-dark: #000000;
JSON
{
"hex": "#51b72a",
"rgb": {
"r": 81,
"g": 183,
"b": 42
},
"hsl": {
"h": 103.404,
"s": 62.667,
"l": 44.118
},
"oklch": {
"l": 0.6921,
"c": 0.19756,
"h": 138.8
},
"luminance": 0.35783
}Semantic roles & 50–950 ramp
primary
#51B72A
secondary
#B174C9
accent
#42E6B8
background
#F9FCF7
surface
#F1F9ED
border
#CBD2C8
text
#0D1408
muted
#7E827B