#42579b
a dark, soft blue · warm · closest name: steelblue
RGB
66, 87, 155
HSL
226°, 40%, 43%
CMYK
57, 44, 0, 39
Luminance
0.1034
Every format
| HEX | #42579b |
| RGB | rgb(66, 87, 155) |
| HSL | hsl(226, 40%, 43%) |
| CMYK | cmyk(57%, 44%, 0%, 39%) |
| LAB | lab(38.5 13.1 -39.6) |
| LCH | lch(38.5 41.8 288.3) |
| OKLCH | oklch(0.474 0.113 268.9) |
Copy-ready code
/* CSS */
color: #42579b;
background-color: #42579b;
/* Tailwind (arbitrary) */
class="text-[#42579b] bg-[#42579b]"
/* SCSS */
$brand: #42579b;
/* SwiftUI */
Color(red: 0.259, green: 0.341, blue: 0.608)
/* Android */
Color.parseColor("#42579b")Accessibility — WCAG contrast
Aa
#42579b on white: 6.84:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#42579b on black: 3.07:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green34.1%
Blue60.8%
CMYK percentages
Cyan57.4%
Magenta43.9%
Yellow0.0%
Key (black)39.2%
Color previews
#42579b text on a black background
contrast 3.07:1
Card sample
#42579b text on a white background
contrast 6.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42579b;
Background color
Panel with #42579b background
background-color: #42579b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42579b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 87, 155, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 87, 155, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42579b; background: linear-gradient(135deg, #42579b, #68429B);