#258cf3
a balanced, electric blue · cool · closest name: dodgerblue
RGB
37, 140, 243
HSL
210°, 90%, 55%
CMYK
85, 42, 0, 5
Luminance
0.2562
Every format
| HEX | #258cf3 |
| RGB | rgb(37, 140, 243) |
| HSL | hsl(210, 90%, 55%) |
| CMYK | cmyk(85%, 42%, 0%, 5%) |
| LAB | lab(57.7 8.3 -59.5) |
| LCH | lch(57.7 60.1 278.0) |
| OKLCH | oklch(0.637 0.178 253.0) |
Copy-ready code
/* CSS */
color: #258cf3;
background-color: #258cf3;
/* Tailwind (arbitrary) */
class="text-[#258cf3] bg-[#258cf3]"
/* SCSS */
$brand: #258cf3;
/* SwiftUI */
Color(red: 0.145, green: 0.549, blue: 0.953)
/* Android */
Color.parseColor("#258cf3")Accessibility — WCAG contrast
Aa
#258cf3 on white: 3.43:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#258cf3 on black: 6.12:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red14.5%
Green54.9%
Blue95.3%
CMYK percentages
Cyan84.8%
Magenta42.4%
Yellow0.0%
Key (black)4.7%
Color previews
#258cf3 text on a black background
contrast 6.12:1
Card sample
#258cf3 text on a white background
contrast 3.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #258cf3;
Background color
Panel with #258cf3 background
background-color: #258cf3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #258cf3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(37, 140, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(37, 140, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #258cf3; background: linear-gradient(135deg, #258cf3, #4725F3);