#51C221#51C221
#51C221 is a light, highly saturated green. Relative luminance 0.404; OKLCH L 72.0% C 0.214 H 138.8°. Best body text is #000000 at 9.09:1 contrast (WCAG AA passes).
Color values
| HEX | #51C221 |
|---|---|
| RGB | rgb(81, 194, 33) |
| HSL | hsl(102, 71%, 45%) |
| HSV | hsv(102, 83%, 76%) |
| CMYK | cmyk(58.2%, 0%, 83%, 23.9%) |
| CIE-LAB | lab(69.78, -58.36, 64.01) |
| CIE-LCH | lch(69.78, 86.62, 132.35°) |
| OKLab | oklab(72.03% -0.1611 0.1409) |
| OKLCH | oklch(72.03% 0.214 138.8) |
| XYZ | xyz(22.9587, 40.4407, 8.0345) |
| Luminance | 0.4044 (WCAG relative) |
| Temperature | warm |
| Family | green |
Closest named colors
Kelly Green
#4CBB17
ΔE00 1.91
Frog Green
#58BC08
ΔE00 2.16
Apple
#6ECB3C
ΔE00 3.50
Lime Green
#32CD32
ΔE00 3.71
Leafy Green
#51B73B
ΔE00 4.10
Apple Green
#76CD26
ΔE00 4.66
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51C221 #9221C2
analogous
#A2C221 #51C221 #21C242
triadic
#51C221 #2151C2 #C22151
tetradic
#51C221 #21A2C2 #9221C2 #C24221
square
#51C221 #21A2C2 #9221C2 #C24221
split-complementary
#51C221 #4221C2 #C221A2
monochromatic
#25590F #3B8E18 #51C221 #70DF41 #98E876
Accessibility & contrast
On white
2.31
#51C221 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
9.09
#51C221 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51C221
9.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51C221 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51C221 | 1.00 | 2.31 | 9.09 | 9.09 |
| #FFFFFF | 2.31 | 1.00 | 21.00 | 21.00 |
| #000000 | 9.09 | 21.00 | 1.00 | 1.00 |
| ##000000 | 9.09 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#C8B000
Deuteranopia (green-blind)
#BAA736
Tritanopia (blue-blind)
#45BBA5
Achromatopsia (no color)
#AAAAAA
Design tokens & code
CSS
--color: #51c221; /* rgb */ color: rgb(81, 194, 33); /* oklch */ color: oklch(72.0% 0.214 138.8);
Tailwind
colors: {
custom: {
50: '#8fd56c',
500: '#51c221',
950: '#000000',
},
}SCSS
$custom: #51c221; $custom-light: #8fd56c; $custom-dark: #000000;
JSON
{
"hex": "#51c221",
"rgb": {
"r": 81,
"g": 194,
"b": 33
},
"hsl": {
"h": 102.112,
"s": 70.925,
"l": 44.51
},
"oklch": {
"l": 0.72029,
"c": 0.21403,
"h": 138.8
},
"luminance": 0.40443
}Semantic roles & 50–950 ramp
primary
#51C221
secondary
#B370CF
accent
#3AEEB8
background
#F9FDF6
surface
#F2FAEC
border
#CCD3C7
text
#0E1408
muted
#7E837A