#21A9CA#21A9CA
#21A9CA is a light, moderate cyan. Relative luminance 0.330; OKLCH L 68.1% C 0.117 H 219.5°. Best body text is #000000 at 7.59:1 contrast (WCAG AA passes).
Color values
| HEX | #21A9CA |
|---|---|
| RGB | rgb(33, 169, 202) |
| HSL | hsl(192, 72%, 46%) |
| HSV | hsv(192, 84%, 79%) |
| CMYK | cmyk(83.7%, 16.3%, 0%, 20.8%) |
| CIE-LAB | lab(64.13, -23.02, -26.62) |
| CIE-LCH | lch(64.13, 35.19, 229.14°) |
| OKLab | oklab(68.14% -0.0904 -0.0746) |
| OKLCH | oklch(68.14% 0.117 219.5) |
| XYZ | xyz(25.4713, 32.9603, 60.8852) |
| Luminance | 0.3296 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 5.71
Greyblue
#77A1B5
ΔE00 8.90
Deepskyblue
#00BFFF
ΔE00 9.82
Bright Sky Blue
#02CCFE
ΔE00 10.11
Cadetblue
#5F9EA0
ΔE00 10.89
Teal Blue
#01889F
ΔE00 11.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21A9CA #CA4221
analogous
#21CA96 #21A9CA #2154CA
triadic
#21A9CA #CA21A9 #A9CA21
tetradic
#21A9CA #9621CA #CA4221 #54CA21
square
#21A9CA #9621CA #CA4221 #54CA21
split-complementary
#21A9CA #CA2154 #CA9621
monochromatic
#105161 #187D95 #21A9CA #47C3E1 #7CD4EA
Accessibility & contrast
On white
2.77
#21A9CA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.59
#21A9CA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #21A9CA
7.59:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21A9CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##21A9CA | 1.00 | 2.77 | 7.59 | 7.59 |
| #FFFFFF | 2.77 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.59 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.59 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#95A4CC
Deuteranopia (green-blind)
#7F95CA
Tritanopia (blue-blind)
#00B4B4
Achromatopsia (no color)
#9B9B9B
Design tokens & code
CSS
--color: #21a9ca; /* rgb */ color: rgb(33, 169, 202); /* oklch */ color: oklch(68.1% 0.117 219.5);
Tailwind
colors: {
custom: {
50: '#7cc2da',
500: '#21a9ca',
950: '#000000',
},
}SCSS
$custom: #21a9ca; $custom-light: #7cc2da; $custom-dark: #000000;
JSON
{
"hex": "#21a9ca",
"rgb": {
"r": 33,
"g": 169,
"b": 202
},
"hsl": {
"h": 191.716,
"s": 71.915,
"l": 46.078
},
"oklch": {
"l": 0.6814,
"c": 0.11716,
"h": 219.5
},
"luminance": 0.32964
}Semantic roles & 50–950 ramp
primary
#21A9CA
secondary
#D28775
accent
#5D39EF
background
#F8FBFD
surface
#F0F7FA
border
#CBD0D3
text
#0B1214
muted
#7C8183