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#3fefef

a balanced, electric cyan · cool · closest name: cyan

RGB
63, 239, 239
HSL
180°, 85%, 59%
CMYK
74, 0, 0, 6
Luminance
0.6902

Every format

HEX#3fefef
RGBrgb(63, 239, 239)
HSLhsl(180, 85%, 59%)
CMYKcmyk(74%, 0%, 0%, 6%)
LABlab(86.5 -42.3 -12.6)
LCHlch(86.5 44.2 196.6)
OKLCHoklch(0.868 0.136 194.9)

Copy-ready code

/* CSS */
color: #3fefef;
background-color: #3fefef;
/* Tailwind (arbitrary) */
class="text-[#3fefef] bg-[#3fefef]"
/* SCSS */
$brand: #3fefef;
/* SwiftUI */
Color(red: 0.247, green: 0.937, blue: 0.937)
/* Android */
Color.parseColor("#3fefef")

Accessibility — WCAG contrast

Aa
#3fefef on white: 1.42:1
AA ✗ fail · AA-large · AAA
Aa
#3fefef on black: 14.80:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red24.7%
Green93.7%
Blue93.7%

CMYK percentages

Cyan73.6%
Magenta0.0%
Yellow0.0%
Key (black)6.3%

Color previews

#3fefef text on a black background

contrast 14.80:1

Card sample

#3fefef text on a white background

contrast 1.42:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #3fefef;
Background color
Panel with #3fefef background
background-color: #3fefef;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #3fefef;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(63, 239, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 239, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3fefef;
background: linear-gradient(135deg, #3fefef, #3F7AEF);

Monochromatic scale

Palettes built from #3fefef

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #3fefef in the Color Lab