#A1CA21#A1CA21
#A1CA21 is a light, vivid yellow-green. Relative luminance 0.499; OKLCH L 78.2% C 0.185 H 123.5°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #A1CA21 |
|---|---|
| RGB | rgb(161, 202, 33) |
| HSL | hsl(75, 72%, 46%) |
| HSV | hsv(75, 84%, 79%) |
| CMYK | cmyk(20.3%, 0%, 83.7%, 20.8%) |
| CIE-LAB | lab(76.02, -34.58, 70.98) |
| CIE-LCH | lch(76.02, 78.96, 115.97°) |
| OKLab | oklab(78.16% -0.1019 0.1539) |
| OKLCH | oklch(78.16% 0.185 123.5) |
| XYZ | xyz(36.0935, 49.9277, 9.1740) |
| Luminance | 0.4993 (WCAG relative) |
| Temperature | warm |
| Family | yellow-green |
Closest named colors
Slime Green
#99CC04
ΔE00 1.60
Yellowgreen
#9ACD32
ΔE00 2.37
Snot Green
#9DC100
ΔE00 2.52
Gross Green
#A0BF16
ΔE00 3.03
Pea
#A4BF20
ΔE00 3.33
Bright Olive
#9CBB04
ΔE00 4.03
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A1CA21 #4A21CA
analogous
#CA9E21 #A1CA21 #4CCA21
triadic
#A1CA21 #21A1CA #CA21A1
tetradic
#A1CA21 #21CA9E #4A21CA #CA214C
square
#A1CA21 #21CA9E #4A21CA #CA214C
split-complementary
#A1CA21 #214CCA #9E21CA
monochromatic
#4D6110 #779518 #A1CA21 #BCE147 #CFEA7C
Accessibility & contrast
On white
1.91
#A1CA21 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
10.99
#A1CA21 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #A1CA21
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A1CA21 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##A1CA21 | 1.00 | 1.91 | 10.99 | 10.99 |
| #FFFFFF | 1.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 10.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 10.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#D6BD00
Deuteranopia (green-blind)
#D1BB35
Tritanopia (blue-blind)
#AAC0AC
Achromatopsia (no color)
#BBBBBB
Design tokens & code
CSS
--color: #a1ca21; /* rgb */ color: rgb(161, 202, 33); /* oklch */ color: oklch(78.2% 0.185 123.5);
Tailwind
colors: {
custom: {
50: '#c1da6e',
500: '#a1ca21',
950: '#000000',
},
}SCSS
$custom: #a1ca21; $custom-light: #c1da6e; $custom-dark: #000000;
JSON
{
"hex": "#a1ca21",
"rgb": {
"r": 161,
"g": 202,
"b": 33
},
"hsl": {
"h": 74.556,
"s": 71.915,
"l": 46.078
},
"oklch": {
"l": 0.7816,
"c": 0.18457,
"h": 123.5
},
"luminance": 0.49928
}Semantic roles & 50–950 ramp
primary
#A1CA21
secondary
#8C75D2
accent
#39EF65
background
#FCFDF7
surface
#F8FAED
border
#D1D3C8
text
#131408
muted
#82837B