#21A5CA#21A5CA
#21A5CA is a light, moderate cyan. Relative luminance 0.315; OKLCH L 67.2% C 0.118 H 222.7°. Best body text is #000000 at 7.30:1 contrast (WCAG AA passes).
Color values
| HEX | #21A5CA |
|---|---|
| RGB | rgb(33, 165, 202) |
| HSL | hsl(193, 72%, 46%) |
| HSV | hsv(193, 84%, 79%) |
| CMYK | cmyk(83.7%, 18.3%, 0%, 20.8%) |
| CIE-LAB | lab(62.92, -20.95, -28.48) |
| CIE-LCH | lch(62.92, 35.35, 233.66°) |
| OKLab | oklab(67.17% -0.0867 -0.0799) |
| OKLCH | oklch(67.17% 0.118 222.7) |
| XYZ | xyz(24.7385, 31.4947, 60.6409) |
| Luminance | 0.3150 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 7.46
Greyblue
#77A1B5
ΔE00 8.58
Deepskyblue
#00BFFF
ΔE00 9.60
Teal Blue
#01889F
ΔE00 10.72
Bright Sky Blue
#02CCFE
ΔE00 10.83
Bluegrey
#85A3B2
ΔE00 11.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21A5CA #CA4621
analogous
#21CA9A #21A5CA #2150CA
triadic
#21A5CA #CA21A5 #A5CA21
tetradic
#21A5CA #9A21CA #CA4621 #50CA21
square
#21A5CA #9A21CA #CA4621 #50CA21
split-complementary
#21A5CA #CA2150 #CA9A21
monochromatic
#104F61 #187A95 #21A5CA #47BFE1 #7CD2EA
Accessibility & contrast
On white
2.88
#21A5CA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.30
#21A5CA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #21A5CA
7.30:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21A5CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##21A5CA | 1.00 | 2.88 | 7.30 | 7.30 |
| #FFFFFF | 2.88 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.30 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.30 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#90A1CC
Deuteranopia (green-blind)
#7A92CA
Tritanopia (blue-blind)
#00B0B1
Achromatopsia (no color)
#989898
Design tokens & code
CSS
--color: #21a5ca; /* rgb */ color: rgb(33, 165, 202); /* oklch */ color: oklch(67.2% 0.118 222.7);
Tailwind
colors: {
custom: {
50: '#7bbfda',
500: '#21a5ca',
950: '#000000',
},
}SCSS
$custom: #21a5ca; $custom-light: #7bbfda; $custom-dark: #000000;
JSON
{
"hex": "#21a5ca",
"rgb": {
"r": 33,
"g": 165,
"b": 202
},
"hsl": {
"h": 193.136,
"s": 71.915,
"l": 46.078
},
"oklch": {
"l": 0.67171,
"c": 0.11789,
"h": 222.7
},
"luminance": 0.31498
}Semantic roles & 50–950 ramp
primary
#21A5CA
secondary
#D28975
accent
#6139EF
background
#F8FBFD
surface
#EFF7FA
border
#CAD0D3
text
#0B1214
muted
#7C8183