#81CA51#81CA51
#81CA51 is a light, vivid yellow-green. Relative luminance 0.475; OKLCH L 76.5% C 0.171 H 134.9°. Best body text is #000000 at 10.50:1 contrast (WCAG AA passes).
Color values
| HEX | #81CA51 |
|---|---|
| RGB | rgb(129, 202, 81) |
| HSL | hsl(96, 53%, 55%) |
| HSV | hsv(96, 60%, 79%) |
| CMYK | cmyk(36.1%, 0%, 59.9%, 20.8%) |
| CIE-LAB | lab(74.51, -43.53, 52.11) |
| CIE-LCH | lch(74.51, 67.90, 129.88°) |
| OKLab | oklab(76.55% -0.1209 0.1215) |
| OKLCH | oklch(76.55% 0.171 134.9) |
| XYZ | xyz(31.6583, 47.5008, 15.2835) |
| Luminance | 0.4750 (WCAG relative) |
| Temperature | warm |
| Family | yellow-green |
Closest named colors
Apple
#6ECB3C
ΔE00 2.72
Apple Green
#76CD26
ΔE00 4.10
Fresh Green
#69D84F
ΔE00 4.57
Turtle Green
#75B84F
ΔE00 4.95
Pistachio
#93C572
ΔE00 5.54
Yellowgreen
#9ACD32
ΔE00 6.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#81CA51 #9A51CA
analogous
#BECA51 #81CA51 #51CA5D
triadic
#81CA51 #5181CA #CA5181
tetradic
#81CA51 #51BECA #9A51CA #CA5D51
square
#81CA51 #51BECA #9A51CA #CA5D51
split-complementary
#81CA51 #5D51CA #CA51BE
monochromatic
#477B25 #63AA34 #81CA51 #A3D880 #C5E7AF
Accessibility & contrast
On white
2.00
#81CA51 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.50
#81CA51 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #81CA51
10.50:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##81CA51 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##81CA51 | 1.00 | 2.00 | 10.50 | 10.50 |
| #FFFFFF | 2.00 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.50 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.50 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#D1BB44
Deuteranopia (green-blind)
#C7B55A
Tritanopia (blue-blind)
#80C3B0
Achromatopsia (no color)
#B7B7B7
Design tokens & code
CSS
--color: #81ca51; /* rgb */ color: rgb(129, 202, 81); /* oklch */ color: oklch(76.5% 0.171 134.9);
Tailwind
colors: {
custom: {
50: '#aada86',
500: '#81ca51',
950: '#000000',
},
}SCSS
$custom: #81ca51; $custom-light: #aada86; $custom-dark: #000000;
JSON
{
"hex": "#81ca51",
"rgb": {
"r": 129,
"g": 202,
"b": 81
},
"hsl": {
"h": 96.198,
"s": 53.304,
"l": 55.49
},
"oklch": {
"l": 0.76548,
"c": 0.17138,
"h": 134.9
},
"luminance": 0.47502
}Semantic roles & 50–950 ramp
primary
#81CA51
secondary
#C1A2D5
accent
#4BDDA3
background
#FAFDF8
surface
#F4FBF0
border
#CED4CB
text
#10150B
muted
#7F837C