#1f55df
a balanced, electric blue · cool · closest name: royalblue
RGB
31, 85, 223
HSL
223°, 76%, 50%
CMYK
86, 62, 0, 13
Luminance
0.1212
Every format
| HEX | #1f55df |
| RGB | rgb(31, 85, 223) |
| HSL | hsl(223, 76%, 50%) |
| CMYK | cmyk(86%, 62%, 0%, 13%) |
| LAB | lab(41.4 35.0 -74.7) |
| LCH | lch(41.4 82.5 295.1) |
| OKLCH | oklch(0.508 0.217 263.9) |
Copy-ready code
/* CSS */
color: #1f55df;
background-color: #1f55df;
/* Tailwind (arbitrary) */
class="text-[#1f55df] bg-[#1f55df]"
/* SCSS */
$brand: #1f55df;
/* SwiftUI */
Color(red: 0.122, green: 0.333, blue: 0.875)
/* Android */
Color.parseColor("#1f55df")Accessibility — WCAG contrast
Aa
#1f55df on white: 6.13:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#1f55df on black: 3.42:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.2%
Green33.3%
Blue87.5%
CMYK percentages
Cyan86.1%
Magenta61.9%
Yellow0.0%
Key (black)12.5%
Color previews
#1f55df text on a black background
contrast 3.42:1
Card sample
#1f55df text on a white background
contrast 6.13:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1f55df;
Background color
Panel with #1f55df background
background-color: #1f55df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1f55df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(31, 85, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(31, 85, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1f55df; background: linear-gradient(135deg, #1f55df, #691FDF);