#3f7daf
a balanced, vivid blue · cool · “steelblue”
RGB
63, 125, 175
HSL
207°, 47%, 47%
CMYK
64, 29, 0, 31
Luminance
0.1882
Every format
| HEX | #3f7daf |
| RGB | rgb(63, 125, 175) |
| HSL | hsl(207, 47%, 47%) |
| CMYK | cmyk(64%, 29%, 0%, 31%) |
| LAB | lab(50.5 -4.2 -32.4) |
| LCH | lch(50.5 32.7 262.7) |
| OKLCH | oklch(0.571 0.101 245.2) |
Copy-ready code
/* CSS */
color: #3f7daf;
background-color: #3f7daf;
/* Tailwind (arbitrary) */
class="text-[#3f7daf] bg-[#3f7daf]"
/* SCSS */
$brand: #3f7daf;
/* SwiftUI */
Color(red: 0.247, green: 0.490, blue: 0.686)
/* Android */
Color.parseColor("#3f7daf")Accessibility — WCAG contrast
Aa
#3f7daf on white: 4.41:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3f7daf on black: 4.76:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green49.0%
Blue68.6%
CMYK percentages
Cyan64.0%
Magenta28.6%
Yellow0.0%
Key (black)31.4%
Color previews
#3f7daf text on a black background
contrast 4.76:1
Card sample
#3f7daf text on a white background
contrast 4.41:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f7daf;
Background color
Panel with #3f7daf background
background-color: #3f7daf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f7daf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 125, 175, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 125, 175, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f7daf; background: linear-gradient(135deg, #3f7daf, #4C3FAF);