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#f4ff3a

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

RGB
244, 255, 58
HSL
63°, 100%, 61%
CMYK
4, 0, 77, 0
Luminance
0.9106

Every format

HEX#f4ff3a
RGBrgb(244, 255, 58)
HSLhsl(63, 100%, 61%)
CMYKcmyk(4%, 0%, 77%, 0%)
LABlab(96.4 -25.0 84.7)
LCHlch(96.4 88.3 106.4)
OKLCHoklch(0.961 0.200 112.9)

Copy-ready code

/* CSS */
color: #f4ff3a;
background-color: #f4ff3a;
/* Tailwind (arbitrary) */
class="text-[#f4ff3a] bg-[#f4ff3a]"
/* SCSS */
$brand: #f4ff3a;
/* SwiftUI */
Color(red: 0.957, green: 1.000, blue: 0.227)
/* Android */
Color.parseColor("#f4ff3a")

Accessibility — WCAG contrast

Aa
#f4ff3a on white: 1.09:1
AA ✗ fail · AA-large · AAA
Aa
#f4ff3a on black: 19.21:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red95.7%
Green100.0%
Blue22.7%

CMYK percentages

Cyan4.3%
Magenta0.0%
Yellow77.3%
Key (black)0.0%

Color previews

#f4ff3a text on a black background

contrast 19.21:1

Card sample

#f4ff3a text on a white background

contrast 1.09:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #f4ff3a;
Background color
Panel with #f4ff3a background
background-color: #f4ff3a;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #f4ff3a;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(244, 255, 58, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(244, 255, 58, 0.45);
Border & gradient
Gradient panel
border: 3px solid #f4ff3a;
background: linear-gradient(135deg, #f4ff3a, #71FF3A);

Monochromatic scale

Palettes built from #f4ff3a

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #f4ff3a in the Color Lab