#278dbb
a dark, vivid cyan · cool · closest name: steelblue
RGB
39, 141, 187
HSL
199°, 66%, 44%
CMYK
79, 25, 0, 27
Luminance
0.2307
Every format
| HEX | #278dbb |
| RGB | rgb(39, 141, 187) |
| HSL | hsl(199, 66%, 44%) |
| CMYK | cmyk(79%, 25%, 0%, 27%) |
| LAB | lab(55.1 -12.6 -32.1) |
| LCH | lch(55.1 34.5 248.5) |
| OKLCH | oklch(0.608 0.113 233.2) |
Copy-ready code
/* CSS */
color: #278dbb;
background-color: #278dbb;
/* Tailwind (arbitrary) */
class="text-[#278dbb] bg-[#278dbb]"
/* SCSS */
$brand: #278dbb;
/* SwiftUI */
Color(red: 0.153, green: 0.553, blue: 0.733)
/* Android */
Color.parseColor("#278dbb")Accessibility — WCAG contrast
Aa
#278dbb on white: 3.74:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#278dbb on black: 5.61:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.3%
Green55.3%
Blue73.3%
CMYK percentages
Cyan79.1%
Magenta24.6%
Yellow0.0%
Key (black)26.7%
Color previews
#278dbb text on a black background
contrast 5.61:1
Card sample
#278dbb text on a white background
contrast 3.74:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #278dbb;
Background color
Panel with #278dbb background
background-color: #278dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #278dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(39, 141, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(39, 141, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #278dbb; background: linear-gradient(135deg, #278dbb, #272ABB);