#51B437#51B437
#51B437 is a light, vivid green. Relative luminance 0.347; OKLCH L 68.5% C 0.186 H 139.8°. Best body text is #000000 at 7.93:1 contrast (WCAG AA passes).
Color values
| HEX | #51B437 |
|---|---|
| RGB | rgb(81, 180, 55) |
| HSL | hsl(108, 53%, 46%) |
| HSV | hsv(108, 69%, 71%) |
| CMYK | cmyk(55%, 0%, 69.4%, 29.4%) |
| CIE-LAB | lab(65.49, -51.86, 52.64) |
| CIE-LCH | lch(65.49, 73.89, 134.57°) |
| OKLab | oklab(68.52% -0.1424 0.1202) |
| OKLCH | oklch(68.52% 0.186 139.8) |
| XYZ | xyz(20.4033, 34.6660, 9.2297) |
| Luminance | 0.3467 (WCAG relative) |
| Temperature | neutral |
| Family | green |
Closest named colors
Leafy Green
#51B73B
ΔE00 0.88
Grass
#5CAC2D
ΔE00 2.88
Kelly Green
#4CBB17
ΔE00 3.39
Nasty Green
#70B23F
ΔE00 3.72
Green (survey)
#15B01A
ΔE00 3.78
Kermit Green
#5CB200
ΔE00 4.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51B437 #9A37B4
analogous
#8FB437 #51B437 #37B45B
triadic
#51B437 #3751B4 #B43751
tetradic
#51B437 #378FB4 #9A37B4 #B45B37
square
#51B437 #378FB4 #9A37B4 #B45B37
split-complementary
#51B437 #5B37B4 #B4378F
monochromatic
#27561A #3C8529 #51B437 #73CD5B #9BDB8A
Accessibility & contrast
On white
2.65
#51B437 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.93
#51B437 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51B437
7.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51B437 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51B437 | 1.00 | 2.65 | 7.93 | 7.93 |
| #FFFFFF | 2.65 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.93 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.93 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B9A424
Deuteranopia (green-blind)
#AC9C43
Tritanopia (blue-blind)
#46AE9B
Achromatopsia (no color)
#9F9F9F
Design tokens & code
CSS
--color: #51b437; /* rgb */ color: rgb(81, 180, 55); /* oklch */ color: oklch(68.5% 0.186 139.8);
Tailwind
colors: {
custom: {
50: '#8ccb75',
500: '#51b437',
950: '#000000',
},
}SCSS
$custom: #51b437; $custom-light: #8ccb75; $custom-dark: #000000;
JSON
{
"hex": "#51b437",
"rgb": {
"r": 81,
"g": 180,
"b": 55
},
"hsl": {
"h": 107.52,
"s": 53.191,
"l": 46.078
},
"oklch": {
"l": 0.68523,
"c": 0.1863,
"h": 139.8
},
"luminance": 0.34668
}Semantic roles & 50–950 ramp
primary
#51B437
secondary
#B781C6
accent
#4BDDBE
background
#F9FCF7
surface
#F1F9ED
border
#CBD2C8
text
#0D1309
muted
#7E827B