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#f0ff40

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

RGB
240, 255, 64
HSL
65°, 100%, 63%
CMYK
6, 0, 75, 0
Luminance
0.9042

Every format

HEX#f0ff40
RGBrgb(240, 255, 64)
HSLhsl(65, 100%, 63%)
CMYKcmyk(6%, 0%, 75%, 0%)
LABlab(96.2 -26.4 82.7)
LCHlch(96.2 86.8 107.7)
OKLCHoklch(0.958 0.199 114.2)

Copy-ready code

/* CSS */
color: #f0ff40;
background-color: #f0ff40;
/* Tailwind (arbitrary) */
class="text-[#f0ff40] bg-[#f0ff40]"
/* SCSS */
$brand: #f0ff40;
/* SwiftUI */
Color(red: 0.941, green: 1.000, blue: 0.251)
/* Android */
Color.parseColor("#f0ff40")

Accessibility — WCAG contrast

Aa
#f0ff40 on white: 1.10:1
AA ✗ fail · AA-large · AAA
Aa
#f0ff40 on black: 19.08:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red94.1%
Green100.0%
Blue25.1%

CMYK percentages

Cyan5.9%
Magenta0.0%
Yellow74.9%
Key (black)0.0%

Color previews

#f0ff40 text on a black background

contrast 19.08:1

Card sample

#f0ff40 text on a white background

contrast 1.10:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #f0ff40;
Background color
Panel with #f0ff40 background
background-color: #f0ff40;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #f0ff40;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(240, 255, 64, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(240, 255, 64, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f0ff40;
background: linear-gradient(135deg, #f0ff40, #71FF40);

Monochromatic scale

Palettes built from #f0ff40

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #f0ff40 in the Color Lab