#66ABF3#66ABF3
#66ABF3 is a light, vivid cyan. Relative luminance 0.384; OKLCH L 72.6% C 0.127 H 250.9°. Best body text is #000000 at 8.68:1 contrast (WCAG AA passes).
Color values
| HEX | #66ABF3 |
|---|---|
| RGB | rgb(102, 171, 243) |
| HSL | hsl(211, 85%, 68%) |
| HSV | hsv(211, 58%, 95%) |
| CMYK | cmyk(58%, 29.6%, 0%, 4.7%) |
| CIE-LAB | lab(68.33, -1.00, -42.50) |
| CIE-LCH | lch(68.33, 42.51, 268.65°) |
| OKLab | oklab(72.58% -0.0415 -0.1197) |
| OKLCH | oklch(72.58% 0.127 250.9) |
| XYZ | xyz(36.2142, 38.4184, 90.2837) |
| Luminance | 0.3842 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sky Blue (survey)
#75BBFD
ΔE00 4.39
Carolina Blue
#8AB8FE
ΔE00 5.77
Azure (survey)
#069AF3
ΔE00 6.80
Cornflowerblue
#6495ED
ΔE00 7.23
Dodgerblue
#1E90FF
ΔE00 8.18
Dark Sky Blue
#448EE4
ΔE00 8.79
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#66ABF3 #F3AE66
analogous
#66F2F3 #66ABF3 #6766F3
triadic
#66ABF3 #F366AB #ABF366
tetradic
#66ABF3 #F366F2 #F3AE66 #66F367
square
#66ABF3 #F366F2 #F3AE66 #66F367
split-complementary
#66ABF3 #F36766 #F2F366
monochromatic
#106DCE #2D8CEF #66ABF3 #9FCAF7 #D7E9FC
Accessibility & contrast
On white
2.42
#66ABF3 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
8.68
#66ABF3 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #66ABF3
8.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##66ABF3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##66ABF3 | 1.00 | 2.42 | 8.68 | 8.68 |
| #FFFFFF | 2.42 | 1.00 | 21.00 | 21.00 |
| #000000 | 8.68 | 21.00 | 1.00 | 1.00 |
| ##000000 | 8.68 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8DAEF6
Deuteranopia (green-blind)
#7AA0F2
Tritanopia (blue-blind)
#00BCC4
Achromatopsia (no color)
#A7A7A7
Design tokens & code
CSS
--color: #66abf3; /* rgb */ color: rgb(102, 171, 243); /* oklch */ color: oklch(72.6% 0.127 250.9);
Tailwind
colors: {
custom: {
50: '#9cc3f7',
500: '#66abf3',
950: '#000000',
},
}SCSS
$custom: #66abf3; $custom-light: #9cc3f7; $custom-dark: #000000;
JSON
{
"hex": "#66abf3",
"rgb": {
"r": 102,
"g": 171,
"b": 243
},
"hsl": {
"h": 210.638,
"s": 85.455,
"l": 67.647
},
"oklch": {
"l": 0.72577,
"c": 0.12672,
"h": 250.9
},
"luminance": 0.38422
}Semantic roles & 50–950 ramp
primary
#66ABF3
secondary
#F0DBC5
accent
#7504E2
background
#FAFBFF
surface
#F4F7FF
border
#CED0D7
text
#0F1217
muted
#7F8185