#66B337#66B337
#66B337 is a light, vivid yellow-green. Relative luminance 0.353; OKLCH L 69.2% C 0.175 H 135.9°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).
Color values
| HEX | #66B337 |
|---|---|
| RGB | rgb(102, 179, 55) |
| HSL | hsl(97, 53%, 46%) |
| HSV | hsv(97, 69%, 70%) |
| CMYK | cmyk(43%, 0%, 69.3%, 29.8%) |
| CIE-LAB | lab(66.01, -45.17, 53.45) |
| CIE-LCH | lch(66.01, 69.98, 130.20°) |
| OKLab | oklab(69.19% -0.1256 0.1216) |
| OKLCH | oklch(69.19% 0.175 135.9) |
| XYZ | xyz(22.2886, 35.3395, 9.2605) |
| Luminance | 0.3534 (WCAG relative) |
| Temperature | warm |
| Family | yellow-green |
Closest named colors
Nasty Green
#70B23F
ΔE00 1.46
Grass
#5CAC2D
ΔE00 2.25
Leafy Green
#51B73B
ΔE00 2.85
Turtle Green
#75B84F
ΔE00 3.05
Leaf
#71AA34
ΔE00 3.27
Kermit Green
#5CB200
ΔE00 3.36
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66B337 #8437B3
analogous
#A4B337 #66B337 #37B346
triadic
#66B337 #3766B3 #B33766
tetradic
#66B337 #37A4B3 #8437B3 #B34637
square
#66B337 #37A4B3 #8437B3 #B34637
split-complementary
#66B337 #4637B3 #B337A4
monochromatic
#31551A #4B8429 #66B337 #86CD5B #A8DB8A
Accessibility & contrast
On white
2.60
#66B337 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.07
#66B337 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66B337
8.07:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66B337 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66B337 | 1.00 | 2.60 | 8.07 | 8.07 |
| #FFFFFF | 2.60 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.07 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.07 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B9A424
Deuteranopia (green-blind)
#AF9E42
Tritanopia (blue-blind)
#63AC9A
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #66b337; /* rgb */ color: rgb(102, 179, 55); /* oklch */ color: oklch(69.2% 0.175 135.9);
Tailwind
colors: {
custom: {
50: '#98ca75',
500: '#66b337',
950: '#000000',
},
}SCSS
$custom: #66b337; $custom-light: #98ca75; $custom-dark: #000000;
JSON
{
"hex": "#66b337",
"rgb": {
"r": 102,
"g": 179,
"b": 55
},
"hsl": {
"h": 97.258,
"s": 52.991,
"l": 45.882
},
"oklch": {
"l": 0.69185,
"c": 0.17482,
"h": 135.9
},
"luminance": 0.35341
}Semantic roles & 50–950 ramp
primary
#66B337
secondary
#AB81C5
accent
#4BDCA5
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1309
muted
#7E827B