#688BDF#688BDF
#688BDF is a light, vivid blue. Relative luminance 0.267; OKLCH L 64.8% C 0.132 H 265.7°. Best body text is #000000 at 6.35:1 contrast (WCAG AA passes).
Color values
| HEX | #688BDF |
|---|---|
| RGB | rgb(104, 139, 223) |
| HSL | hsl(222, 65%, 64%) |
| HSV | hsv(222, 53%, 87%) |
| CMYK | cmyk(53.4%, 37.7%, 0%, 12.5%) |
| CIE-LAB | lab(58.73, 11.61, -46.58) |
| CIE-LCH | lch(58.73, 48.00, 283.99°) |
| OKLab | oklab(64.81% -0.0098 -0.1318) |
| OKLCH | oklch(64.81% 0.132 265.7) |
| XYZ | xyz(28.2564, 26.7339, 73.4689) |
| Luminance | 0.2674 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Soft Blue
#6488EA
ΔE00 1.55
Cornflowerblue
#6495ED
ΔE00 3.91
Faded Blue
#658CBB
ΔE00 4.39
Dodger Blue
#3E82FC
ΔE00 5.21
Dark Sky Blue
#448EE4
ΔE00 6.05
Lightish Blue
#3D7AFD
ΔE00 6.58
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#688BDF #DFBC68
analogous
#68C7DF #688BDF #8168DF
triadic
#688BDF #DF688B #8BDF68
tetradic
#688BDF #DF68C7 #DFBC68 #68DF81
square
#688BDF #DF68C7 #DFBC68 #68DF81
split-complementary
#688BDF #DF8168 #C7DF68
monochromatic
#244BA9 #3664D4 #688BDF #9BB2EA #CDD9F4
Accessibility & contrast
On white
3.31
#688BDF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.35
#688BDF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #688BDF
6.35:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##688BDF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##688BDF | 1.00 | 3.31 | 6.35 | 6.35 |
| #FFFFFF | 3.31 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.35 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.35 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6993E2
Deuteranopia (green-blind)
#5B88DD
Tritanopia (blue-blind)
#299DAA
Achromatopsia (no color)
#8D8D8D
Design tokens & code
CSS
--color: #688bdf; /* rgb */ color: rgb(104, 139, 223); /* oklch */ color: oklch(64.8% 0.132 265.7);
Tailwind
colors: {
custom: {
50: '#9aace9',
500: '#688bdf',
950: '#000000',
},
}SCSS
$custom: #688bdf; $custom-light: #9aace9; $custom-dark: #000000;
JSON
{
"hex": "#688bdf",
"rgb": {
"r": 104,
"g": 139,
"b": 223
},
"hsl": {
"h": 222.353,
"s": 65.027,
"l": 64.118
},
"oklch": {
"l": 0.64812,
"c": 0.13218,
"h": 265.7
},
"luminance": 0.26736
}Semantic roles & 50–950 ramp
primary
#688BDF
secondary
#E6DABD
accent
#9819CD
background
#F9FAFE
surface
#F2F4FD
border
#CCCED5
text
#0F1016
muted
#7E7F84