#233fdb
a balanced, vivid blue · warm · closest name: slateblue
RGB
35, 63, 219
HSL
231°, 72%, 50%
CMYK
84, 71, 0, 14
Luminance
0.0903
Every format
| HEX | #233fdb |
| RGB | rgb(35, 63, 219) |
| HSL | hsl(231, 72%, 50%) |
| CMYK | cmyk(84%, 71%, 0%, 14%) |
| LAB | lab(36.0 47.4 -81.2) |
| LCH | lch(36.0 94.0 300.3) |
| OKLCH | oklch(0.468 0.236 267.0) |
Copy-ready code
/* CSS */
color: #233fdb;
background-color: #233fdb;
/* Tailwind (arbitrary) */
class="text-[#233fdb] bg-[#233fdb]"
/* SCSS */
$brand: #233fdb;
/* SwiftUI */
Color(red: 0.137, green: 0.247, blue: 0.859)
/* Android */
Color.parseColor("#233fdb")Accessibility — WCAG contrast
Aa
#233fdb on white: 7.49:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#233fdb on black: 2.81:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red13.7%
Green24.7%
Blue85.9%
CMYK percentages
Cyan84.0%
Magenta71.2%
Yellow0.0%
Key (black)14.1%
Color previews
#233fdb text on a black background
contrast 2.81:1
Card sample
#233fdb text on a white background
contrast 7.49:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #233fdb;
Background color
Panel with #233fdb background
background-color: #233fdb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #233fdb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(35, 63, 219, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(35, 63, 219, 0.45);
Border & gradient
Gradient panel
border: 3px solid #233fdb; background: linear-gradient(135deg, #233fdb, #8223DB);