#688BE0#688BE0
#688BE0 is a light, vivid blue. Relative luminance 0.268; OKLCH L 64.9% C 0.134 H 265.9°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).
Color values
| HEX | #688BE0 |
|---|---|
| RGB | rgb(104, 139, 224) |
| HSL | hsl(223, 66%, 64%) |
| HSV | hsv(223, 54%, 88%) |
| CMYK | cmyk(53.6%, 37.9%, 0%, 12.2%) |
| CIE-LAB | lab(58.78, 11.92, -47.06) |
| CIE-LCH | lch(58.78, 48.54, 284.21°) |
| OKLab | oklab(64.87% -0.0096 -0.1332) |
| OKLCH | oklch(64.87% 0.134 265.9) |
| XYZ | xyz(28.3916, 26.7880, 74.1810) |
| Luminance | 0.2679 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Soft Blue
#6488EA
ΔE00 1.46
Cornflowerblue
#6495ED
ΔE00 3.88
Faded Blue
#658CBB
ΔE00 4.47
Dodger Blue
#3E82FC
ΔE00 5.17
Dark Sky Blue
#448EE4
ΔE00 6.07
Lightish Blue
#3D7AFD
ΔE00 6.55
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#688BE0 #E0BD68
analogous
#68C7E0 #688BE0 #8168E0
triadic
#688BE0 #E0688B #8BE068
tetradic
#688BE0 #E068C7 #E0BD68 #68E081
square
#688BE0 #E068C7 #E0BD68 #68E081
split-complementary
#688BE0 #E08168 #C7E068
monochromatic
#234BAB #3564D6 #688BE0 #9BB2EA #CED9F5
Accessibility & contrast
On white
3.30
#688BE0 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.36
#688BE0 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #688BE0
6.36:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##688BE0 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##688BE0 | 1.00 | 3.30 | 6.36 | 6.36 |
| #FFFFFF | 3.30 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.36 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.36 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6993E3
Deuteranopia (green-blind)
#5A88DE
Tritanopia (blue-blind)
#279DAB
Achromatopsia (no color)
#8D8D8D
Design tokens & code
CSS
--color: #688be0; /* rgb */ color: rgb(104, 139, 224); /* oklch */ color: oklch(64.9% 0.134 265.9);
Tailwind
colors: {
custom: {
50: '#9bacea',
500: '#688be0',
950: '#000000',
},
}SCSS
$custom: #688be0; $custom-light: #9bacea; $custom-dark: #000000;
JSON
{
"hex": "#688be0",
"rgb": {
"r": 104,
"g": 139,
"b": 224
},
"hsl": {
"h": 222.5,
"s": 65.934,
"l": 64.314
},
"oklch": {
"l": 0.64867,
"c": 0.13356,
"h": 265.9
},
"luminance": 0.2679
}Semantic roles & 50–950 ramp
primary
#688BE0
secondary
#E7DBBD
accent
#9918CE
background
#F9FAFE
surface
#F2F4FD
border
#CCCED5
text
#0F1016
muted
#7E7F84