#688CC4#688CC4
#688CC4 is a light, moderate blue. Relative luminance 0.257; OKLCH L 63.6% C 0.094 H 259.0°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).
Color values
| HEX | #688CC4 |
|---|---|
| RGB | rgb(104, 140, 196) |
| HSL | hsl(217, 44%, 59%) |
| HSV | hsv(217, 47%, 77%) |
| CMYK | cmyk(46.9%, 28.6%, 0%, 23.1%) |
| CIE-LAB | lab(57.73, 2.74, -32.97) |
| CIE-LCH | lch(57.73, 33.08, 274.75°) |
| OKLab | oklab(63.63% -0.0179 -0.0923) |
| OKLCH | oklch(63.63% 0.094 259) |
| XYZ | xyz(25.0475, 25.6831, 55.8513) |
| Luminance | 0.2569 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Faded Blue
#658CBB
ΔE00 1.75
Soft Blue
#6488EA
ΔE00 4.31
Dusty Blue
#5A86AD
ΔE00 5.16
Cornflowerblue
#6495ED
ΔE00 5.18
Off Blue
#5684AE
ΔE00 5.40
Dark Sky Blue
#448EE4
ΔE00 5.68
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#688CC4 #C4A068
analogous
#68BAC4 #688CC4 #7268C4
triadic
#688CC4 #C4688C #8CC468
tetradic
#688CC4 #C468BA #C4A068 #68C472
square
#688CC4 #C468BA #C4A068 #68C472
split-complementary
#688CC4 #C47268 #BAC468
monochromatic
#325080 #436CAC #688CC4 #94AED5 #C0CFE6
Accessibility & contrast
On white
3.42
#688CC4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.14
#688CC4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #688CC4
6.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##688CC4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##688CC4 | 1.00 | 3.42 | 6.14 | 6.14 |
| #FFFFFF | 3.42 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.14 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.14 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7790C6
Deuteranopia (green-blind)
#6C87C3
Tritanopia (blue-blind)
#4298A0
Achromatopsia (no color)
#8B8B8B
Design tokens & code
CSS
--color: #688cc4; /* rgb */ color: rgb(104, 140, 196); /* oklch */ color: oklch(63.6% 0.094 259.0);
Tailwind
colors: {
custom: {
50: '#98add6',
500: '#688cc4',
950: '#000000',
},
}SCSS
$custom: #688cc4; $custom-light: #98add6; $custom-dark: #000000;
JSON
{
"hex": "#688cc4",
"rgb": {
"r": 104,
"g": 140,
"b": 196
},
"hsl": {
"h": 216.522,
"s": 43.81,
"l": 58.824
},
"oklch": {
"l": 0.63625,
"c": 0.09401,
"h": 259
},
"luminance": 0.25685
}Semantic roles & 50–950 ramp
primary
#688CC4
secondary
#D6C8B2
accent
#A254D4
background
#F9FAFD
surface
#F2F4FA
border
#CCCED3
text
#0E1014
muted
#7E7F83