#668FCF#668FCF
#668FCF is a light, moderate blue. Relative luminance 0.270; OKLCH L 64.7% C 0.107 H 259.0°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).
Color values
| HEX | #668FCF |
|---|---|
| RGB | rgb(102, 143, 207) |
| HSL | hsl(217, 52%, 61%) |
| HSV | hsv(217, 51%, 81%) |
| CMYK | cmyk(50.7%, 30.9%, 0%, 18.8%) |
| CIE-LAB | lab(58.95, 3.83, -37.28) |
| CIE-LCH | lch(58.95, 37.48, 275.87°) |
| OKLab | oklab(64.7% -0.0203 -0.1048) |
| OKLCH | oklch(64.7% 0.107 259) |
| XYZ | xyz(26.5606, 26.9728, 62.8260) |
| Luminance | 0.2697 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Faded Blue
#658CBB
ΔE00 2.65
Cornflowerblue
#6495ED
ΔE00 3.55
Soft Blue
#6488EA
ΔE00 3.82
Dark Sky Blue
#448EE4
ΔE00 4.54
Dodger Blue
#3E82FC
ΔE00 5.94
Dusty Blue
#5A86AD
ΔE00 5.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#668FCF #CFA666
analogous
#66C4CF #668FCF #7166CF
triadic
#668FCF #CF668F #8FCF66
tetradic
#668FCF #CF66C4 #CFA666 #66CF71
square
#668FCF #CF66C4 #CFA666 #66CF71
split-complementary
#668FCF #CF7166 #C4CF66
monochromatic
#2D538E #3B6EBD #668FCF #95B1DE #C3D3EC
Accessibility & contrast
On white
3.28
#668FCF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.40
#668FCF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #668FCF
6.40:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##668FCF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##668FCF | 1.00 | 3.28 | 6.40 | 6.40 |
| #FFFFFF | 3.28 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.40 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.40 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7693D2
Deuteranopia (green-blind)
#6A89CE
Tritanopia (blue-blind)
#349DA6
Achromatopsia (no color)
#8E8E8E
Design tokens & code
CSS
--color: #668fcf; /* rgb */ color: rgb(102, 143, 207); /* oklch */ color: oklch(64.7% 0.107 259.0);
Tailwind
colors: {
custom: {
50: '#97afde',
500: '#668fcf',
950: '#000000',
},
}SCSS
$custom: #668fcf; $custom-light: #97afde; $custom-dark: #000000;
JSON
{
"hex": "#668fcf",
"rgb": {
"r": 102,
"g": 143,
"b": 207
},
"hsl": {
"h": 216.571,
"s": 52.239,
"l": 60.588
},
"oklch": {
"l": 0.64704,
"c": 0.10672,
"h": 259
},
"luminance": 0.26975
}Semantic roles & 50–950 ramp
primary
#668FCF
secondary
#DCCDB4
accent
#8426C0
background
#F9FAFD
surface
#F2F4FB
border
#CCCED4
text
#0E1015
muted
#7E7F83