#66BE37#66BE37
#66BE37 is a light, vivid yellow-green. Relative luminance 0.399; OKLCH L 72.0% C 0.189 H 136.9°. Best body text is #000000 at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #66BE37 |
|---|---|
| RGB | rgb(102, 190, 55) |
| HSL | hsl(99, 55%, 48%) |
| HSV | hsv(99, 71%, 75%) |
| CMYK | cmyk(46.3%, 0%, 71.1%, 25.5%) |
| CIE-LAB | lab(69.42, -49.61, 56.96) |
| CIE-LCH | lch(69.42, 75.54, 131.06°) |
| OKLab | oklab(71.98% -0.1376 0.129) |
| OKLCH | oklch(71.98% 0.189 136.9) |
| XYZ | xyz(24.5818, 39.9259, 10.0249) |
| Luminance | 0.3993 (WCAG relative) |
| Temperature | warm |
| Family | yellow-green |
Closest named colors
Frog Green
#58BC08
ΔE00 2.81
Kelly Green
#4CBB17
ΔE00 2.84
Leafy Green
#51B73B
ΔE00 3.26
Apple
#6ECB3C
ΔE00 3.40
Turtle Green
#75B84F
ΔE00 3.66
Nasty Green
#70B23F
ΔE00 3.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66BE37 #8F37BE
analogous
#A9BE37 #66BE37 #37BE4B
triadic
#66BE37 #3766BE #BE3766
tetradic
#66BE37 #37A9BE #8F37BE #BE4B37
square
#66BE37 #37A9BE #8F37BE #BE4B37
split-complementary
#66BE37 #4B37BE #BE37A9
monochromatic
#335F1C #4D8F29 #66BE37 #88D161 #ACDF90
Accessibility & contrast
On white
2.34
#66BE37 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.99
#66BE37 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66BE37
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66BE37 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66BE37 | 1.00 | 2.34 | 8.99 | 8.99 |
| #FFFFFF | 2.34 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#C4AE21
Deuteranopia (green-blind)
#B9A744
Tritanopia (blue-blind)
#61B7A3
Achromatopsia (no color)
#A9A9A9
Design tokens & code
CSS
--color: #66be37; /* rgb */ color: rgb(102, 190, 55); /* oklch */ color: oklch(72.0% 0.189 136.9);
Tailwind
colors: {
custom: {
50: '#99d276',
500: '#66be37',
950: '#000000',
},
}SCSS
$custom: #66be37; $custom-light: #99d276; $custom-dark: #000000;
JSON
{
"hex": "#66be37",
"rgb": {
"r": 102,
"g": 190,
"b": 55
},
"hsl": {
"h": 99.111,
"s": 55.102,
"l": 48.039
},
"oklch": {
"l": 0.71977,
"c": 0.18861,
"h": 136.9
},
"luminance": 0.39928
}Semantic roles & 50–950 ramp
primary
#66BE37
secondary
#B387CA
accent
#49DEAB
background
#F9FDF7
surface
#F2FAED
border
#CCD3C8
text
#0F1409
muted
#7E837B