#1f00bb
a dark, electric blue · warm · closest name: navy
RGB
31, 0, 187
HSL
250°, 100%, 37%
CMYK
83, 100, 0, 27
Luminance
0.0388
Every format
| HEX | #1f00bb |
| RGB | rgb(31, 0, 187) |
| HSL | hsl(250, 100%, 37%) |
| CMYK | cmyk(83%, 100%, 0%, 27%) |
| LAB | lab(23.3 63.1 -83.7) |
| LCH | lch(23.3 104.8 307.0) |
| OKLCH | oklch(0.368 0.242 269.6) |
Copy-ready code
/* CSS */
color: #1f00bb;
background-color: #1f00bb;
/* Tailwind (arbitrary) */
class="text-[#1f00bb] bg-[#1f00bb]"
/* SCSS */
$brand: #1f00bb;
/* SwiftUI */
Color(red: 0.122, green: 0.000, blue: 0.733)
/* Android */
Color.parseColor("#1f00bb")Accessibility — WCAG contrast
Aa
#1f00bb on white: 11.83:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#1f00bb on black: 1.78:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.2%
Green0.0%
Blue73.3%
CMYK percentages
Cyan83.4%
Magenta100.0%
Yellow0.0%
Key (black)26.7%
Color previews
#1f00bb text on a black background
contrast 1.78:1
Card sample
#1f00bb text on a white background
contrast 11.83:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1f00bb;
Background color
Panel with #1f00bb background
background-color: #1f00bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1f00bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(31, 0, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(31, 0, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1f00bb; background: linear-gradient(135deg, #1f00bb, #9C00BB);