#42f5df
a balanced, electric cyan · cool · closest name: turquoise
RGB
66, 245, 223
HSL
173°, 90%, 61%
CMYK
73, 0, 9, 4
Luminance
0.7179
Every format
| HEX | #42f5df |
| RGB | rgb(66, 245, 223) |
| HSL | hsl(173, 90%, 61%) |
| CMYK | cmyk(73%, 0%, 9%, 4%) |
| LAB | lab(87.9 -48.9 -2.2) |
| LCH | lch(87.9 49.0 182.6) |
| OKLCH | oklch(0.878 0.143 182.7) |
Copy-ready code
/* CSS */
color: #42f5df;
background-color: #42f5df;
/* Tailwind (arbitrary) */
class="text-[#42f5df] bg-[#42f5df]"
/* SCSS */
$brand: #42f5df;
/* SwiftUI */
Color(red: 0.259, green: 0.961, blue: 0.875)
/* Android */
Color.parseColor("#42f5df")Accessibility — WCAG contrast
Aa
#42f5df on white: 1.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#42f5df on black: 15.36:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.9%
Green96.1%
Blue87.5%
CMYK percentages
Cyan73.1%
Magenta0.0%
Yellow9.0%
Key (black)3.9%
Color previews
#42f5df text on a black background
contrast 15.36:1
Card sample
#42f5df text on a white background
contrast 1.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #42f5df;
Background color
Panel with #42f5df background
background-color: #42f5df;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #42f5df;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(66, 245, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(66, 245, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #42f5df; background: linear-gradient(135deg, #42f5df, #4294F5);