#3f7caf
a balanced, vivid blue · cool · “steelblue”
RGB
63, 124, 175
HSL
207°, 47%, 47%
CMYK
64, 29, 0, 31
Luminance
0.1857
Every format
| HEX | #3f7caf |
| RGB | rgb(63, 124, 175) |
| HSL | hsl(207, 47%, 47%) |
| CMYK | cmyk(64%, 29%, 0%, 31%) |
| LAB | lab(50.2 -3.6 -32.9) |
| LCH | lch(50.2 33.1 263.8) |
| OKLCH | oklch(0.568 0.102 246.1) |
Copy-ready code
/* CSS */
color: #3f7caf;
background-color: #3f7caf;
/* Tailwind (arbitrary) */
class="text-[#3f7caf] bg-[#3f7caf]"
/* SCSS */
$brand: #3f7caf;
/* SwiftUI */
Color(red: 0.247, green: 0.486, blue: 0.686)
/* Android */
Color.parseColor("#3f7caf")Accessibility — WCAG contrast
Aa
#3f7caf on white: 4.46:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3f7caf on black: 4.71:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green48.6%
Blue68.6%
CMYK percentages
Cyan64.0%
Magenta29.1%
Yellow0.0%
Key (black)31.4%
Color previews
#3f7caf text on a black background
contrast 4.71:1
Card sample
#3f7caf text on a white background
contrast 4.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f7caf;
Background color
Panel with #3f7caf background
background-color: #3f7caf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f7caf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 124, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 124, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f7caf; background: linear-gradient(135deg, #3f7caf, #4D3FAF);