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#3affcb

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

RGB
58, 255, 203
HSL
164°, 100%, 61%
CMYK
77, 0, 20, 0
Luminance
0.7673

Every format

HEX#3affcb
RGBrgb(58, 255, 203)
HSLhsl(164, 100%, 61%)
CMYKcmyk(77%, 0%, 20%, 0%)
LABlab(90.2 -58.8 11.5)
LCHlch(90.2 59.9 168.9)
OKLCHoklch(0.895 0.166 169.8)

Copy-ready code

/* CSS */
color: #3affcb;
background-color: #3affcb;
/* Tailwind (arbitrary) */
class="text-[#3affcb] bg-[#3affcb]"
/* SCSS */
$brand: #3affcb;
/* SwiftUI */
Color(red: 0.227, green: 1.000, blue: 0.796)
/* Android */
Color.parseColor("#3affcb")

Accessibility — WCAG contrast

Aa
#3affcb on white: 1.28:1
AA ✗ fail · AA-large · AAA
Aa
#3affcb on black: 16.35:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red22.7%
Green100.0%
Blue79.6%

CMYK percentages

Cyan77.3%
Magenta0.0%
Yellow20.4%
Key (black)0.0%

Color previews

#3affcb text on a black background

contrast 16.35:1

Card sample

#3affcb text on a white background

contrast 1.28:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

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

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(58, 255, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(58, 255, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3affcb;
background: linear-gradient(135deg, #3affcb, #3AB0FF);

Monochromatic scale

Palettes built from #3affcb

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #3affcb in the Color Lab