#175b8f
a dark, vivid blue · cool · closest name: steelblue
RGB
23, 91, 143
HSL
206°, 72%, 33%
CMYK
84, 36, 0, 44
Luminance
0.0965
Every format
| HEX | #175b8f |
| RGB | rgb(23, 91, 143) |
| HSL | hsl(206, 72%, 33%) |
| CMYK | cmyk(84%, 36%, 0%, 44%) |
| LAB | lab(37.2 -1.0 -34.5) |
| LCH | lch(37.2 34.5 268.4) |
| OKLCH | oklch(0.457 0.107 246.8) |
Copy-ready code
/* CSS */
color: #175b8f;
background-color: #175b8f;
/* Tailwind (arbitrary) */
class="text-[#175b8f] bg-[#175b8f]"
/* SCSS */
$brand: #175b8f;
/* SwiftUI */
Color(red: 0.090, green: 0.357, blue: 0.561)
/* Android */
Color.parseColor("#175b8f")Accessibility — WCAG contrast
Aa
#175b8f on white: 7.17:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#175b8f on black: 2.93:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green35.7%
Blue56.1%
CMYK percentages
Cyan83.9%
Magenta36.4%
Yellow0.0%
Key (black)43.9%
Color previews
#175b8f text on a black background
contrast 2.93:1
Card sample
#175b8f text on a white background
contrast 7.17:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #175b8f;
Background color
Panel with #175b8f background
background-color: #175b8f;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #175b8f;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 91, 143, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 91, 143, 0.45);
Border & gradient
Gradient panel
border: 3px solid #175b8f; background: linear-gradient(135deg, #175b8f, #23178F);