#66CAEF#66CAEF
#66CAEF is a light, moderate cyan. Relative luminance 0.513; OKLCH L 79.3% C 0.107 H 224.9°. Best body text is #000000 at 11.26:1 contrast (WCAG AA passes).
Color values
| HEX | #66CAEF |
|---|---|
| RGB | rgb(102, 202, 239) |
| HSL | hsl(196, 81%, 67%) |
| HSV | hsv(196, 57%, 94%) |
| CMYK | cmyk(57.3%, 15.5%, 0%, 6.3%) |
| CIE-LAB | lab(76.86, -18.88, -27.13) |
| CIE-LCH | lch(76.86, 33.05, 235.16°) |
| OKLab | oklab(79.28% -0.0758 -0.0755) |
| OKLCH | oklch(79.28% 0.107 224.9) |
| XYZ | xyz(42.1740, 51.2938, 89.3228) |
| Luminance | 0.5130 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sky Blue
#87CEEB
ΔE00 3.50
Baby Blue
#89CFF0
ΔE00 3.77
Bright Sky Blue
#02CCFE
ΔE00 3.95
Lightblue (survey)
#7BC8F6
ΔE00 4.71
Lightskyblue
#87CEFA
ΔE00 5.32
Neon Blue
#04D9FF
ΔE00 5.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66CAEF #EF8B66
analogous
#66EFCF #66CAEF #6686EF
triadic
#66CAEF #EF66CA #CAEF66
tetradic
#66CAEF #CF66EF #EF8B66 #86EF66
square
#66CAEF #CF66EF #EF8B66 #86EF66
split-complementary
#66CAEF #EF6686 #EFCF66
monochromatic
#1596C6 #2FB7E9 #66CAEF #9DDDF5 #D5F0FB
Accessibility & contrast
On white
1.87
#66CAEF on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
11.26
#66CAEF on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66CAEF
11.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66CAEF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66CAEF | 1.00 | 1.87 | 11.26 | 11.26 |
| #FFFFFF | 1.87 | 1.00 | 21.00 | 21.00 |
| #000000 | 11.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 11.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#B6C6F1
Deuteranopia (green-blind)
#A2B7EF
Tritanopia (blue-blind)
#00D5D6
Achromatopsia (no color)
#BEBEBE
Design tokens & code
CSS
--color: #66caef; /* rgb */ color: rgb(102, 202, 239); /* oklch */ color: oklch(79.3% 0.107 224.9);
Tailwind
colors: {
custom: {
50: '#9cdaf4',
500: '#66caef',
950: '#000000',
},
}SCSS
$custom: #66caef; $custom-light: #9cdaf4; $custom-dark: #000000;
JSON
{
"hex": "#66caef",
"rgb": {
"r": 102,
"g": 202,
"b": 239
},
"hsl": {
"h": 196.204,
"s": 81.065,
"l": 66.863
},
"oklch": {
"l": 0.79281,
"c": 0.10698,
"h": 224.9
},
"luminance": 0.51298
}Semantic roles & 50–950 ramp
primary
#66CAEF
secondary
#C35C36
accent
#4208DD
background
#FCFEFF
surface
#F6FBFE
border
#D0D4D6
text
#0F1417
muted
#808385