#283ac3
a balanced, vivid blue · warm · closest name: slateblue
RGB
40, 58, 195
HSL
233°, 66%, 46%
CMYK
80, 70, 0, 24
Luminance
0.0742
Every format
| HEX | #283ac3 |
| RGB | rgb(40, 58, 195) |
| HSL | hsl(233, 66%, 46%) |
| CMYK | cmyk(80%, 70%, 0%, 24%) |
| LAB | lab(32.7 42.4 -72.7) |
| LCH | lch(32.7 84.2 300.2) |
| OKLCH | oklch(0.437 0.211 268.9) |
Copy-ready code
/* CSS */
color: #283ac3;
background-color: #283ac3;
/* Tailwind (arbitrary) */
class="text-[#283ac3] bg-[#283ac3]"
/* SCSS */
$brand: #283ac3;
/* SwiftUI */
Color(red: 0.157, green: 0.227, blue: 0.765)
/* Android */
Color.parseColor("#283ac3")Accessibility — WCAG contrast
Aa
#283ac3 on white: 8.46:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#283ac3 on black: 2.48:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green22.7%
Blue76.5%
CMYK percentages
Cyan79.5%
Magenta70.3%
Yellow0.0%
Key (black)23.5%
Color previews
#283ac3 text on a black background
contrast 2.48:1
Card sample
#283ac3 text on a white background
contrast 8.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #283ac3;
Background color
Panel with #283ac3 background
background-color: #283ac3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #283ac3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 58, 195, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 58, 195, 0.45);
Border & gradient
Gradient panel
border: 3px solid #283ac3; background: linear-gradient(135deg, #283ac3, #7D28C3);