#638bcf
a balanced, vivid blue · cool · closest name: steelblue
RGB
99, 139, 207
HSL
218°, 53%, 60%
CMYK
52, 33, 0, 19
Luminance
0.2562
Every format
| HEX | #638bcf |
| RGB | rgb(99, 139, 207) |
| HSL | hsl(218, 53%, 60%) |
| CMYK | cmyk(52%, 33%, 0%, 19%) |
| LAB | lab(57.7 5.5 -39.3) |
| LCH | lch(57.7 39.7 278.0) |
| OKLCH | oklch(0.637 0.112 260.6) |
Copy-ready code
/* CSS */
color: #638bcf;
background-color: #638bcf;
/* Tailwind (arbitrary) */
class="text-[#638bcf] bg-[#638bcf]"
/* SCSS */
$brand: #638bcf;
/* SwiftUI */
Color(red: 0.388, green: 0.545, blue: 0.812)
/* Android */
Color.parseColor("#638bcf")Accessibility — WCAG contrast
Aa
#638bcf on white: 3.43:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#638bcf on black: 6.12:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red38.8%
Green54.5%
Blue81.2%
CMYK percentages
Cyan52.2%
Magenta32.9%
Yellow0.0%
Key (black)18.8%
Color previews
#638bcf text on a black background
contrast 6.12:1
Card sample
#638bcf text on a white background
contrast 3.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #638bcf;
Background color
Panel with #638bcf background
background-color: #638bcf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #638bcf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(99, 139, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(99, 139, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #638bcf; background: linear-gradient(135deg, #638bcf, #8363CF);