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#40cff3

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

RGB
64, 207, 243
HSL
192°, 88%, 60%
CMYK
74, 15, 0, 5
Luminance
0.5219

Every format

HEX#40cff3
RGBrgb(64, 207, 243)
HSLhsl(192, 88%, 60%)
CMYKcmyk(74%, 15%, 0%, 5%)
LABlab(77.4 -26.0 -28.6)
LCHlch(77.4 38.6 227.7)
OKLCHoklch(0.795 0.128 218.7)

Copy-ready code

/* CSS */
color: #40cff3;
background-color: #40cff3;
/* Tailwind (arbitrary) */
class="text-[#40cff3] bg-[#40cff3]"
/* SCSS */
$brand: #40cff3;
/* SwiftUI */
Color(red: 0.251, green: 0.812, blue: 0.953)
/* Android */
Color.parseColor("#40cff3")

Accessibility — WCAG contrast

Aa
#40cff3 on white: 1.84:1
AA ✗ fail · AA-large · AAA
Aa
#40cff3 on black: 11.44:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red25.1%
Green81.2%
Blue95.3%

CMYK percentages

Cyan73.7%
Magenta14.8%
Yellow0.0%
Key (black)4.7%

Color previews

#40cff3 text on a black background

contrast 11.44:1

Card sample

#40cff3 text on a white background

contrast 1.84:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #40cff3;
Background color
Panel with #40cff3 background
background-color: #40cff3;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #40cff3;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(64, 207, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 207, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40cff3;
background: linear-gradient(135deg, #40cff3, #4058F3);

Monochromatic scale

Palettes built from #40cff3

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #40cff3 in the Color Lab