#42b0ff
a balanced, electric blue · cool · closest name: steelblue
RGB
66, 176, 255
HSL
205°, 100%, 63%
CMYK
74, 31, 0, 0
Luminance
0.3943
Every format
| HEX | #42b0ff |
| RGB | rgb(66, 176, 255) |
| HSL | hsl(205, 100%, 63%) |
| CMYK | cmyk(74%, 31%, 0%, 0%) |
| LAB | lab(69.1 -5.5 -48.0) |
| LCH | lch(69.1 48.3 263.5) |
| OKLCH | oklch(0.730 0.151 244.1) |
Copy-ready code
/* CSS */
color: #42b0ff;
background-color: #42b0ff;
/* Tailwind (arbitrary) */
class="text-[#42b0ff] bg-[#42b0ff]"
/* SCSS */
$brand: #42b0ff;
/* SwiftUI */
Color(red: 0.259, green: 0.690, blue: 1.000)
/* Android */
Color.parseColor("#42b0ff")Accessibility — WCAG contrast
Aa
#42b0ff on white: 2.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42b0ff on black: 8.89:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green69.0%
Blue100.0%
CMYK percentages
Cyan74.1%
Magenta31.0%
Yellow0.0%
Key (black)0.0%
Color previews
#42b0ff text on a black background
contrast 8.89:1
Card sample
#42b0ff text on a white background
contrast 2.36:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42b0ff;
Background color
Panel with #42b0ff background
background-color: #42b0ff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42b0ff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 176, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 176, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42b0ff; background: linear-gradient(135deg, #42b0ff, #5242FF);