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#cfff28

a balanced, electric green · cool · closest name: yellow

RGB
207, 255, 40
HSL
73°, 100%, 58%
CMYK
19, 0, 84, 0
Luminance
0.8494

Every format

HEX#cfff28
RGBrgb(207, 255, 40)
HSLhsl(73, 100%, 58%)
CMYKcmyk(19%, 0%, 84%, 0%)
LABlab(93.9 -40.2 85.8)
LCHlch(93.9 94.7 115.1)
OKLCHoklch(0.933 0.220 122.7)

Copy-ready code

/* CSS */
color: #cfff28;
background-color: #cfff28;
/* Tailwind (arbitrary) */
class="text-[#cfff28] bg-[#cfff28]"
/* SCSS */
$brand: #cfff28;
/* SwiftUI */
Color(red: 0.812, green: 1.000, blue: 0.157)
/* Android */
Color.parseColor("#cfff28")

Accessibility — WCAG contrast

Aa
#cfff28 on white: 1.17:1
AA ✗ fail · AA-large · AAA
Aa
#cfff28 on black: 17.99:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red81.2%
Green100.0%
Blue15.7%

CMYK percentages

Cyan18.8%
Magenta0.0%
Yellow84.3%
Key (black)0.0%

Color previews

#cfff28 text on a black background

contrast 17.99:1

Card sample

#cfff28 text on a white background

contrast 1.17:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #cfff28;
Background color
Panel with #cfff28 background
background-color: #cfff28;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #cfff28;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(207, 255, 40, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(207, 255, 40, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cfff28;
background: linear-gradient(135deg, #cfff28, #3FFF28);

Monochromatic scale

Palettes built from #cfff28

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #cfff28 in the Color Lab