#688BF3#688BF3
#688BF3 is a light, vivid blue. Relative luminance 0.279; OKLCH L 66.0% C 0.160 H 267.9°. Best body text is #000000 at 6.58:1 contrast (WCAG AA passes).
Color values
| HEX | #688BF3 |
|---|---|
| RGB | rgb(104, 139, 243) |
| HSL | hsl(225, 85%, 68%) |
| HSV | hsv(225, 57%, 95%) |
| CMYK | cmyk(57.2%, 42.8%, 0%, 4.7%) |
| CIE-LAB | lab(59.78, 17.97, -56.01) |
| CIE-LCH | lch(59.78, 58.82, 287.79°) |
| OKLab | oklab(65.96% -0.0059 -0.1594) |
| OKLCH | oklch(65.96% 0.16 267.9) |
| XYZ | xyz(31.1138, 27.8769, 88.5178) |
| Luminance | 0.2788 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Soft Blue
#6488EA
ΔE00 1.47
Cornflowerblue
#6495ED
ΔE00 3.92
Dodger Blue
#3E82FC
ΔE00 4.89
Faded Blue
#658CBB
ΔE00 6.10
Cornflower
#6A79F7
ΔE00 6.14
Lightish Blue
#3D7AFD
ΔE00 6.18
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#688BF3 #F3D068
analogous
#68D0F3 #688BF3 #8A68F3
triadic
#688BF3 #F3688B #8BF368
tetradic
#688BF3 #F368D0 #F3D068 #68F38A
square
#688BF3 #F368D0 #F3D068 #68F38A
split-complementary
#688BF3 #F38A68 #D0F368
monochromatic
#1141D0 #2F5FEE #688BF3 #A1B7F8 #D9E2FC
Accessibility & contrast
On white
3.19
#688BF3 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.58
#688BF3 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #688BF3
6.58:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##688BF3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##688BF3 | 1.00 | 3.19 | 6.58 | 6.58 |
| #FFFFFF | 3.19 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.58 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.58 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D97F7
Deuteranopia (green-blind)
#4A8AF1
Tritanopia (blue-blind)
#00A2B3
Achromatopsia (no color)
#909090
Design tokens & code
CSS
--color: #688bf3; /* rgb */ color: rgb(104, 139, 243); /* oklch */ color: oklch(66.0% 0.160 267.9);
Tailwind
colors: {
custom: {
50: '#9dacf7',
500: '#688bf3',
950: '#000000',
},
}SCSS
$custom: #688bf3; $custom-light: #9dacf7; $custom-dark: #000000;
JSON
{
"hex": "#688bf3",
"rgb": {
"r": 104,
"g": 139,
"b": 243
},
"hsl": {
"h": 224.892,
"s": 85.276,
"l": 68.039
},
"oklch": {
"l": 0.65962,
"c": 0.15954,
"h": 267.9
},
"luminance": 0.27879
}Semantic roles & 50–950 ramp
primary
#688BF3
secondary
#F1E6C6
accent
#AA04E2
background
#FAFAFF
surface
#F4F4FF
border
#CECED7
text
#0F1017
muted
#7F7F85