#557bc9
a balanced, vivid blue · cool · closest name: steelblue
RGB
85, 123, 201
HSL
220°, 52%, 56%
CMYK
58, 39, 0, 21
Luminance
0.2031
Every format
| HEX | #557bc9 |
| RGB | rgb(85, 123, 201) |
| HSL | hsl(220, 52%, 56%) |
| CMYK | cmyk(58%, 39%, 0%, 21%) |
| LAB | lab(52.2 10.1 -44.6) |
| LCH | lch(52.2 45.7 282.8) |
| OKLCH | oklch(0.591 0.127 263.4) |
Copy-ready code
/* CSS */
color: #557bc9;
background-color: #557bc9;
/* Tailwind (arbitrary) */
class="text-[#557bc9] bg-[#557bc9]"
/* SCSS */
$brand: #557bc9;
/* SwiftUI */
Color(red: 0.333, green: 0.482, blue: 0.788)
/* Android */
Color.parseColor("#557bc9")Accessibility — WCAG contrast
Aa
#557bc9 on white: 4.15:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#557bc9 on black: 5.06:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red33.3%
Green48.2%
Blue78.8%
CMYK percentages
Cyan57.7%
Magenta38.8%
Yellow0.0%
Key (black)21.2%
Color previews
#557bc9 text on a black background
contrast 5.06:1
Card sample
#557bc9 text on a white background
contrast 4.15:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #557bc9;
Background color
Panel with #557bc9 background
background-color: #557bc9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #557bc9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(85, 123, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(85, 123, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #557bc9; background: linear-gradient(135deg, #557bc9, #7C55C9);