#21A4CA#21A4CA
#21A4CA is a light, moderate cyan. Relative luminance 0.311; OKLCH L 66.9% C 0.118 H 223.4°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).
Color values
| HEX | #21A4CA |
|---|---|
| RGB | rgb(33, 164, 202) |
| HSL | hsl(193, 72%, 46%) |
| HSV | hsv(193, 84%, 79%) |
| CMYK | cmyk(83.7%, 18.8%, 0%, 20.8%) |
| CIE-LAB | lab(62.62, -20.42, -28.94) |
| CIE-LCH | lch(62.62, 35.42, 234.79°) |
| OKLab | oklab(66.93% -0.0858 -0.0812) |
| OKLCH | oklch(66.93% 0.118 223.4) |
| XYZ | xyz(24.5588, 31.1354, 60.5810) |
| Luminance | 0.3114 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 7.90
Greyblue
#77A1B5
ΔE00 8.55
Deepskyblue
#00BFFF
ΔE00 9.61
Teal Blue
#01889F
ΔE00 10.61
Bright Sky Blue
#02CCFE
ΔE00 11.05
Bluegrey
#85A3B2
ΔE00 11.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21A4CA #CA4721
analogous
#21CA9B #21A4CA #214FCA
triadic
#21A4CA #CA21A4 #A4CA21
tetradic
#21A4CA #9B21CA #CA4721 #4FCA21
square
#21A4CA #9B21CA #CA4721 #4FCA21
split-complementary
#21A4CA #CA214F #CA9B21
monochromatic
#104F61 #187995 #21A4CA #47BEE1 #7CD1EA
Accessibility & contrast
On white
2.91
#21A4CA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.23
#21A4CA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #21A4CA
7.23:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21A4CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##21A4CA | 1.00 | 2.91 | 7.23 | 7.23 |
| #FFFFFF | 2.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.23 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.23 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8EA0CC
Deuteranopia (green-blind)
#7991CA
Tritanopia (blue-blind)
#00B0B0
Achromatopsia (no color)
#979797
Design tokens & code
CSS
--color: #21a4ca; /* rgb */ color: rgb(33, 164, 202); /* oklch */ color: oklch(66.9% 0.118 223.4);
Tailwind
colors: {
custom: {
50: '#7bbfda',
500: '#21a4ca',
950: '#000000',
},
}SCSS
$custom: #21a4ca; $custom-light: #7bbfda; $custom-dark: #000000;
JSON
{
"hex": "#21a4ca",
"rgb": {
"r": 33,
"g": 164,
"b": 202
},
"hsl": {
"h": 193.491,
"s": 71.915,
"l": 46.078
},
"oklch": {
"l": 0.66929,
"c": 0.11813,
"h": 223.4
},
"luminance": 0.31139
}Semantic roles & 50–950 ramp
primary
#21A4CA
secondary
#D28A75
accent
#6239EF
background
#F8FBFD
surface
#EFF7FA
border
#CAD0D3
text
#0B1214
muted
#7C8183