#63BB31#63BB31
#63BB31 is a light, vivid yellow-green. Relative luminance 0.384; OKLCH L 71.0% C 0.190 H 136.7°. Best body text is #000000 at 8.68:1 contrast (WCAG AA passes).
Color values
| HEX | #63BB31 |
|---|---|
| RGB | rgb(99, 187, 49) |
| HSL | hsl(98, 58%, 46%) |
| HSV | hsv(98, 74%, 73%) |
| CMYK | cmyk(47.1%, 0%, 73.8%, 26.7%) |
| CIE-LAB | lab(68.32, -49.78, 58.00) |
| CIE-LCH | lch(68.32, 76.43, 130.64°) |
| OKLab | oklab(71.03% -0.1383 0.1304) |
| OKLCH | oklch(71.03% 0.19 136.7) |
| XYZ | xyz(23.4696, 38.4135, 9.0830) |
| Luminance | 0.3841 (WCAG relative) |
| Temperature | warm |
| Family | yellow-green |
Closest named colors
Kelly Green
#4CBB17
ΔE00 2.33
Frog Green
#58BC08
ΔE00 2.34
Leafy Green
#51B73B
ΔE00 2.93
Nasty Green
#70B23F
ΔE00 3.36
Kermit Green
#5CB200
ΔE00 3.47
Turtle Green
#75B84F
ΔE00 3.79
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#63BB31 #8931BB
analogous
#A8BB31 #63BB31 #31BB44
triadic
#63BB31 #3163BB #BB3163
tetradic
#63BB31 #31A8BB #8931BB #BB4431
square
#63BB31 #31A8BB #8931BB #BB4431
split-complementary
#63BB31 #4431BB #BB31A8
monochromatic
#305A18 #498B24 #63BB31 #83D356 #A7E087
Accessibility & contrast
On white
2.42
#63BB31 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.68
#63BB31 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #63BB31
8.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##63BB31 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##63BB31 | 1.00 | 2.42 | 8.68 | 8.68 |
| #FFFFFF | 2.42 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.68 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.68 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#C1AB16
Deuteranopia (green-blind)
#B6A43F
Tritanopia (blue-blind)
#5EB4A0
Achromatopsia (no color)
#A7A7A7
Design tokens & code
CSS
--color: #63bb31; /* rgb */ color: rgb(99, 187, 49); /* oklch */ color: oklch(71.0% 0.190 136.7);
Tailwind
colors: {
custom: {
50: '#97d072',
500: '#63bb31',
950: '#000000',
},
}SCSS
$custom: #63bb31; $custom-light: #97d072; $custom-dark: #000000;
JSON
{
"hex": "#63bb31",
"rgb": {
"r": 99,
"g": 187,
"b": 49
},
"hsl": {
"h": 98.261,
"s": 58.475,
"l": 46.275
},
"oklch": {
"l": 0.71034,
"c": 0.19004,
"h": 136.7
},
"luminance": 0.38415
}Semantic roles & 50–950 ramp
primary
#63BB31
secondary
#AE7FC9
accent
#46E2A9
background
#F9FCF7
surface
#F2F9ED
border
#CCD2C8
text
#0E1408
muted
#7E827B