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#e3fc21

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

RGB
227, 252, 33
HSL
67°, 97%, 56%
CMYK
10, 0, 87, 1
Luminance
0.8606

Every format

HEX#e3fc21
RGBrgb(227, 252, 33)
HSLhsl(67, 97%, 56%)
CMYKcmyk(10%, 0%, 87%, 1%)
LABlab(94.3 -31.1 88.0)
LCHlch(94.3 93.4 109.5)
OKLCHoklch(0.941 0.211 116.9)

Copy-ready code

/* CSS */
color: #e3fc21;
background-color: #e3fc21;
/* Tailwind (arbitrary) */
class="text-[#e3fc21] bg-[#e3fc21]"
/* SCSS */
$brand: #e3fc21;
/* SwiftUI */
Color(red: 0.890, green: 0.988, blue: 0.129)
/* Android */
Color.parseColor("#e3fc21")

Accessibility — WCAG contrast

Aa
#e3fc21 on white: 1.15:1
AA ✗ fail · AA-large · AAA
Aa
#e3fc21 on black: 18.21:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red89.0%
Green98.8%
Blue12.9%

CMYK percentages

Cyan9.9%
Magenta0.0%
Yellow86.9%
Key (black)1.2%

Color previews

#e3fc21 text on a black background

contrast 18.21:1

Card sample

#e3fc21 text on a white background

contrast 1.15:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #e3fc21;
Background color
Panel with #e3fc21 background
background-color: #e3fc21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #e3fc21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(227, 252, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(227, 252, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #e3fc21;
background: linear-gradient(135deg, #e3fc21, #51FC21);

Monochromatic scale

Palettes built from #e3fc21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #e3fc21 in the Color Lab