#668BCF#668BCF
#668BCF is a light, moderate blue. Relative luminance 0.258; OKLCH L 63.8% C 0.111 H 261.9°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).
Color values
| HEX | #668BCF |
|---|---|
| RGB | rgb(102, 139, 207) |
| HSL | hsl(219, 52%, 61%) |
| HSV | hsv(219, 51%, 81%) |
| CMYK | cmyk(50.7%, 32.9%, 0%, 18.8%) |
| CIE-LAB | lab(57.84, 6.18, -39.02) |
| CIE-LCH | lch(57.84, 39.50, 279.00°) |
| OKLab | oklab(63.84% -0.0156 -0.1098) |
| OKLCH | oklch(63.84% 0.111 261.9) |
| XYZ | xyz(25.9708, 25.7932, 62.6294) |
| Luminance | 0.2580 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Faded Blue
#658CBB
ΔE00 2.81
Soft Blue
#6488EA
ΔE00 3.17
Cornflowerblue
#6495ED
ΔE00 4.52
Dark Sky Blue
#448EE4
ΔE00 5.42
Dodger Blue
#3E82FC
ΔE00 5.70
Dusty Blue
#5A86AD
ΔE00 5.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#668BCF #CFAA66
analogous
#66C0CF #668BCF #7566CF
triadic
#668BCF #CF668B #8BCF66
tetradic
#668BCF #CF66C0 #CFAA66 #66CF75
square
#668BCF #CF66C0 #CFAA66 #66CF75
split-complementary
#668BCF #CF7566 #C0CF66
monochromatic
#2D4F8E #3B69BD #668BCF #95AEDE #C3D2EC
Accessibility & contrast
On white
3.41
#668BCF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.16
#668BCF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #668BCF
6.16:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##668BCF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##668BCF | 1.00 | 3.41 | 6.16 | 6.16 |
| #FFFFFF | 3.41 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.16 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.16 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7190D2
Deuteranopia (green-blind)
#6487CE
Tritanopia (blue-blind)
#359AA4
Achromatopsia (no color)
#8B8B8B
Design tokens & code
CSS
--color: #668bcf; /* rgb */ color: rgb(102, 139, 207); /* oklch */ color: oklch(63.8% 0.111 261.9);
Tailwind
colors: {
custom: {
50: '#98acde',
500: '#668bcf',
950: '#000000',
},
}SCSS
$custom: #668bcf; $custom-light: #98acde; $custom-dark: #000000;
JSON
{
"hex": "#668bcf",
"rgb": {
"r": 102,
"g": 139,
"b": 207
},
"hsl": {
"h": 218.857,
"s": 52.239,
"l": 60.588
},
"oklch": {
"l": 0.6384,
"c": 0.11093,
"h": 261.9
},
"luminance": 0.25795
}Semantic roles & 50–950 ramp
primary
#668BCF
secondary
#DCCEB4
accent
#8926C0
background
#F9FAFD
surface
#F2F4FB
border
#CCCED4
text
#0E1015
muted
#7E7F83