#66B237#66B237
#66B237 is a light, vivid yellow-green. Relative luminance 0.349; OKLCH L 68.9% C 0.174 H 135.8°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #66B237 |
|---|---|
| RGB | rgb(102, 178, 55) |
| HSL | hsl(97, 53%, 46%) |
| HSV | hsv(97, 69%, 70%) |
| CMYK | cmyk(42.7%, 0%, 69.1%, 30.2%) |
| CIE-LAB | lab(65.70, -44.76, 53.12) |
| CIE-LCH | lch(65.70, 69.46, 130.11°) |
| OKLab | oklab(68.93% -0.1245 0.1209) |
| OKLCH | oklch(68.93% 0.174 135.8) |
| XYZ | xyz(22.0889, 34.9402, 9.1939) |
| Luminance | 0.3494 (WCAG relative) |
| Temperature | warm |
| Family | yellow-green |
Closest named colors
Nasty Green
#70B23F
ΔE00 1.39
Grass
#5CAC2D
ΔE00 2.03
Leafy Green
#51B73B
ΔE00 2.97
Leaf
#71AA34
ΔE00 3.05
Turtle Green
#75B84F
ΔE00 3.14
Kermit Green
#5CB200
ΔE00 3.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66B237 #8337B2
analogous
#A3B237 #66B237 #37B245
triadic
#66B237 #3766B2 #B23766
tetradic
#66B237 #37A3B2 #8337B2 #B24537
square
#66B237 #37A3B2 #8337B2 #B24537
split-complementary
#66B237 #4537B2 #B237A3
monochromatic
#30541A #4B8329 #66B237 #86CC5A #A8DB89
Accessibility & contrast
On white
2.63
#66B237 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.99
#66B237 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66B237
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66B237 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66B237 | 1.00 | 2.63 | 7.99 | 7.99 |
| #FFFFFF | 2.63 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B8A425
Deuteranopia (green-blind)
#AE9D42
Tritanopia (blue-blind)
#63AB99
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #66b237; /* rgb */ color: rgb(102, 178, 55); /* oklch */ color: oklch(68.9% 0.174 135.8);
Tailwind
colors: {
custom: {
50: '#98c975',
500: '#66b237',
950: '#000000',
},
}SCSS
$custom: #66b237; $custom-light: #98c975; $custom-dark: #000000;
JSON
{
"hex": "#66b237",
"rgb": {
"r": 102,
"g": 178,
"b": 55
},
"hsl": {
"h": 97.073,
"s": 52.79,
"l": 45.686
},
"oklch": {
"l": 0.68931,
"c": 0.17353,
"h": 135.8
},
"luminance": 0.34941
}Semantic roles & 50–950 ramp
primary
#66B237
secondary
#AA80C5
accent
#4CDCA5
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1309
muted
#7E827B