#668CBF#668CBF
#668CBF is a light, moderate cyan. Relative luminance 0.253; OKLCH L 63.3% C 0.088 H 256.0°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).
Color values
| HEX | #668CBF |
|---|---|
| RGB | rgb(102, 140, 191) |
| HSL | hsl(214, 41%, 57%) |
| HSV | hsv(214, 47%, 75%) |
| CMYK | cmyk(46.6%, 26.7%, 0%, 25.1%) |
| CIE-LAB | lab(57.41, 0.75, -30.66) |
| CIE-LCH | lch(57.41, 30.67, 271.41°) |
| OKLab | oklab(63.27% -0.0214 -0.0857) |
| OKLCH | oklch(63.27% 0.088 256) |
| XYZ | xyz(24.2584, 25.3409, 52.8931) |
| Luminance | 0.2534 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Faded Blue
#658CBB
ΔE00 0.80
Dusty Blue
#5A86AD
ΔE00 4.31
Off Blue
#5684AE
ΔE00 4.61
Soft Blue
#6488EA
ΔE00 4.84
Dark Sky Blue
#448EE4
ΔE00 5.39
Cool Blue
#4984B8
ΔE00 5.43
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#668CBF #BF9966
analogous
#66B9BF #668CBF #6C66BF
triadic
#668CBF #BF668C #8CBF66
tetradic
#668CBF #BF66B9 #BF9966 #66BF6C
square
#668CBF #BF66B9 #BF9966 #66BF6C
split-complementary
#668CBF #BF6C66 #B9BF66
monochromatic
#325078 #446DA3 #668CBF #91ACD1 #BCCDE3
Accessibility & contrast
On white
3.46
#668CBF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.07
#668CBF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #668CBF
6.07:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##668CBF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##668CBF | 1.00 | 3.46 | 6.07 | 6.07 |
| #FFFFFF | 3.46 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.07 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.07 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#798FC1
Deuteranopia (green-blind)
#6E86BE
Tritanopia (blue-blind)
#41979E
Achromatopsia (no color)
#8A8A8A
Design tokens & code
CSS
--color: #668cbf; /* rgb */ color: rgb(102, 140, 191); /* oklch */ color: oklch(63.3% 0.088 256.0);
Tailwind
colors: {
custom: {
50: '#96add2',
500: '#668cbf',
950: '#000000',
},
}SCSS
$custom: #668cbf; $custom-light: #96add2; $custom-dark: #000000;
JSON
{
"hex": "#668cbf",
"rgb": {
"r": 102,
"g": 140,
"b": 191
},
"hsl": {
"h": 214.382,
"s": 41.014,
"l": 57.451
},
"oklch": {
"l": 0.63266,
"c": 0.08828,
"h": 256
},
"luminance": 0.25343
}Semantic roles & 50–950 ramp
primary
#668CBF
secondary
#D2C3AE
accent
#9D57D1
background
#F9FAFC
surface
#F2F4F9
border
#CCCED2
text
#0E1014
muted
#7E7F82