#287dbb
a dark, vivid blue · cool · closest name: steelblue
RGB
40, 125, 187
HSL
205°, 65%, 45%
CMYK
79, 33, 0, 27
Luminance
0.1871
Every format
| HEX | #287dbb |
| RGB | rgb(40, 125, 187) |
| HSL | hsl(205, 65%, 45%) |
| CMYK | cmyk(79%, 33%, 0%, 27%) |
| LAB | lab(50.3 -3.3 -39.6) |
| LCH | lch(50.3 39.8 265.3) |
| OKLCH | oklch(0.570 0.124 245.0) |
Copy-ready code
/* CSS */
color: #287dbb;
background-color: #287dbb;
/* Tailwind (arbitrary) */
class="text-[#287dbb] bg-[#287dbb]"
/* SCSS */
$brand: #287dbb;
/* SwiftUI */
Color(red: 0.157, green: 0.490, blue: 0.733)
/* Android */
Color.parseColor("#287dbb")Accessibility — WCAG contrast
Aa
#287dbb on white: 4.43:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#287dbb on black: 4.74:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red15.7%
Green49.0%
Blue73.3%
CMYK percentages
Cyan78.6%
Magenta33.2%
Yellow0.0%
Key (black)26.7%
Color previews
#287dbb text on a black background
contrast 4.74:1
Card sample
#287dbb text on a white background
contrast 4.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #287dbb;
Background color
Panel with #287dbb background
background-color: #287dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #287dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(40, 125, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(40, 125, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #287dbb; background: linear-gradient(135deg, #287dbb, #3528BB);