#668DB2#668DB2
#668DB2 is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.9% C 0.071 H 247.7°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).
Color values
| HEX | #668DB2 |
|---|---|
| RGB | rgb(102, 141, 178) |
| HSL | hsl(209, 33%, 55%) |
| HSV | hsv(209, 43%, 70%) |
| CMYK | cmyk(42.7%, 20.8%, 0%, 30.2%) |
| CIE-LAB | lab(57.16, -3.60, -23.65) |
| CIE-LCH | lch(57.16, 23.92, 261.34°) |
| OKLab | oklab(62.9% -0.0269 -0.0656) |
| OKLCH | oklch(62.9% 0.071 247.7) |
| XYZ | xyz(23.0376, 25.0875, 45.7393) |
| Luminance | 0.2509 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Faded Blue
#658CBB
ΔE00 2.28
Dusty Blue
#5A86AD
ΔE00 2.86
Off Blue
#5684AE
ΔE00 3.70
Blue Grey
#758DA3
ΔE00 4.72
Cool Blue
#4984B8
ΔE00 5.02
Greyish Blue
#5E819D
ΔE00 5.11
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#668DB2 #B28B66
analogous
#66B2B1 #668DB2 #6667B2
triadic
#668DB2 #B2668D #8DB266
tetradic
#668DB2 #B166B2 #B28B66 #67B266
square
#668DB2 #B166B2 #B28B66 #67B266
split-complementary
#668DB2 #B26667 #B2B166
monochromatic
#354F69 #496E92 #668DB2 #8FABC6 #B7CADB
Accessibility & contrast
On white
3.49
#668DB2 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.02
#668DB2 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #668DB2
6.02:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##668DB2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##668DB2 | 1.00 | 3.49 | 6.02 | 6.02 |
| #FFFFFF | 3.49 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.02 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.02 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7E8EB4
Deuteranopia (green-blind)
#7586B1
Tritanopia (blue-blind)
#499699
Achromatopsia (no color)
#898989
Design tokens & code
CSS
--color: #668db2; /* rgb */ color: rgb(102, 141, 178); /* oklch */ color: oklch(62.9% 0.071 247.7);
Tailwind
colors: {
custom: {
50: '#95aec9',
500: '#668db2',
950: '#000000',
},
}SCSS
$custom: #668db2; $custom-light: #95aec9; $custom-dark: #000000;
JSON
{
"hex": "#668db2",
"rgb": {
"r": 102,
"g": 141,
"b": 178
},
"hsl": {
"h": 209.211,
"s": 33.043,
"l": 54.902
},
"oklch": {
"l": 0.62899,
"c": 0.0709,
"h": 247.7
},
"luminance": 0.25089
}Semantic roles & 50–950 ramp
primary
#668DB2
secondary
#CAB9AA
accent
#925FC9
background
#F9FAFC
surface
#F2F4F8
border
#CCCED1
text
#0D1013
muted
#7E7F82