#3997bf
a balanced, vivid cyan · cool · closest name: steelblue
RGB
57, 151, 191
HSL
198°, 54%, 49%
CMYK
70, 21, 0, 25
Luminance
0.2676
Every format
| HEX | #3997bf |
| RGB | rgb(57, 151, 191) |
| HSL | hsl(198, 54%, 49%) |
| CMYK | cmyk(70%, 21%, 0%, 25%) |
| LAB | lab(58.8 -14.5 -28.7) |
| LCH | lch(58.8 32.2 243.2) |
| OKLCH | oklch(0.638 0.105 230.0) |
Copy-ready code
/* CSS */
color: #3997bf;
background-color: #3997bf;
/* Tailwind (arbitrary) */
class="text-[#3997bf] bg-[#3997bf]"
/* SCSS */
$brand: #3997bf;
/* SwiftUI */
Color(red: 0.224, green: 0.592, blue: 0.749)
/* Android */
Color.parseColor("#3997bf")Accessibility — WCAG contrast
Aa
#3997bf on white: 3.31:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3997bf on black: 6.35:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green59.2%
Blue74.9%
CMYK percentages
Cyan70.2%
Magenta20.9%
Yellow0.0%
Key (black)25.1%
Color previews
#3997bf text on a black background
contrast 6.35:1
Card sample
#3997bf text on a white background
contrast 3.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3997bf;
Background color
Panel with #3997bf background
background-color: #3997bf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3997bf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 151, 191, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 151, 191, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3997bf; background: linear-gradient(135deg, #3997bf, #393EBF);