#688bc9
a balanced, vivid blue · cool · closest name: steelblue
RGB
104, 139, 201
HSL
218°, 47%, 60%
CMYK
48, 31, 0, 21
Luminance
0.2563
Every format
| HEX | #688bc9 |
| RGB | rgb(104, 139, 201) |
| HSL | hsl(218, 47%, 60%) |
| CMYK | cmyk(48%, 31%, 0%, 21%) |
| LAB | lab(57.7 4.8 -35.9) |
| LCH | lch(57.7 36.2 277.7) |
| OKLCH | oklch(0.636 0.102 261.4) |
Copy-ready code
/* CSS */
color: #688bc9;
background-color: #688bc9;
/* Tailwind (arbitrary) */
class="text-[#688bc9] bg-[#688bc9]"
/* SCSS */
$brand: #688bc9;
/* SwiftUI */
Color(red: 0.408, green: 0.545, blue: 0.788)
/* Android */
Color.parseColor("#688bc9")Accessibility — WCAG contrast
Aa
#688bc9 on white: 3.43:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#688bc9 on black: 6.13:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.8%
Green54.5%
Blue78.8%
CMYK percentages
Cyan48.3%
Magenta30.8%
Yellow0.0%
Key (black)21.2%
Color previews
#688bc9 text on a black background
contrast 6.13:1
Card sample
#688bc9 text on a white background
contrast 3.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #688bc9;
Background color
Panel with #688bc9 background
background-color: #688bc9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #688bc9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(104, 139, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(104, 139, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #688bc9; background: linear-gradient(135deg, #688bc9, #8668C9);