#21A3CA#21A3CA
#21A3CA is a light, moderate cyan. Relative luminance 0.308; OKLCH L 66.7% C 0.118 H 224.2°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).
Color values
| HEX | #21A3CA |
|---|---|
| RGB | rgb(33, 163, 202) |
| HSL | hsl(194, 72%, 46%) |
| HSV | hsv(194, 84%, 79%) |
| CMYK | cmyk(83.7%, 19.3%, 0%, 20.8%) |
| CIE-LAB | lab(62.32, -19.90, -29.41) |
| CIE-LCH | lch(62.32, 35.51, 235.92°) |
| OKLab | oklab(66.69% -0.0848 -0.0826) |
| OKLCH | oklch(66.69% 0.118 224.2) |
| XYZ | xyz(24.3806, 30.7789, 60.5216) |
| Luminance | 0.3078 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 8.34
Greyblue
#77A1B5
ΔE00 8.55
Deepskyblue
#00BFFF
ΔE00 9.63
Teal Blue
#01889F
ΔE00 10.52
Bright Sky Blue
#02CCFE
ΔE00 11.29
Dirty Blue
#3F829D
ΔE00 11.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#21A3CA #CA4821
analogous
#21CA9C #21A3CA #214ECA
triadic
#21A3CA #CA21A3 #A3CA21
tetradic
#21A3CA #9C21CA #CA4821 #4ECA21
square
#21A3CA #9C21CA #CA4821 #4ECA21
split-complementary
#21A3CA #CA214E #CA9C21
monochromatic
#104E61 #187995 #21A3CA #47BDE1 #7CD0EA
Accessibility & contrast
On white
2.93
#21A3CA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.16
#21A3CA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #21A3CA
7.16:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##21A3CA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##21A3CA | 1.00 | 2.93 | 7.16 | 7.16 |
| #FFFFFF | 2.93 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.16 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.16 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8D9FCC
Deuteranopia (green-blind)
#7890CA
Tritanopia (blue-blind)
#00AFB0
Achromatopsia (no color)
#979797
Design tokens & code
CSS
--color: #21a3ca; /* rgb */ color: rgb(33, 163, 202); /* oklch */ color: oklch(66.7% 0.118 224.2);
Tailwind
colors: {
custom: {
50: '#7bbeda',
500: '#21a3ca',
950: '#000000',
},
}SCSS
$custom: #21a3ca; $custom-light: #7bbeda; $custom-dark: #000000;
JSON
{
"hex": "#21a3ca",
"rgb": {
"r": 33,
"g": 163,
"b": 202
},
"hsl": {
"h": 193.846,
"s": 71.915,
"l": 46.078
},
"oklch": {
"l": 0.66687,
"c": 0.1184,
"h": 224.2
},
"luminance": 0.30782
}Semantic roles & 50–950 ramp
primary
#21A3CA
secondary
#D28B75
accent
#6339EF
background
#F8FBFD
surface
#EFF6FA
border
#CAD0D3
text
#0B1214
muted
#7C8183