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#deef21

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

RGB
222, 239, 33
HSL
65°, 87%, 53%
CMYK
7, 0, 86, 6
Luminance
0.7737

Every format

HEX#deef21
RGBrgb(222, 239, 33)
HSLhsl(65, 87%, 53%)
CMYKcmyk(7%, 0%, 86%, 6%)
LABlab(90.5 -27.1 84.8)
LCHlch(90.5 89.0 107.7)
OKLCHoklch(0.909 0.200 114.9)

Copy-ready code

/* CSS */
color: #deef21;
background-color: #deef21;
/* Tailwind (arbitrary) */
class="text-[#deef21] bg-[#deef21]"
/* SCSS */
$brand: #deef21;
/* SwiftUI */
Color(red: 0.871, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#deef21")

Accessibility — WCAG contrast

Aa
#deef21 on white: 1.27:1
AA ✗ fail · AA-large · AAA
Aa
#deef21 on black: 16.47:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red87.1%
Green93.7%
Blue12.9%

CMYK percentages

Cyan7.1%
Magenta0.0%
Yellow86.2%
Key (black)6.3%

Color previews

#deef21 text on a black background

contrast 16.47:1

Card sample

#deef21 text on a white background

contrast 1.27:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #deef21;
Background color
Panel with #deef21 background
background-color: #deef21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #deef21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(222, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(222, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #deef21;
background: linear-gradient(135deg, #deef21, #54EF21);

Monochromatic scale

Palettes built from #deef21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #deef21 in the Color Lab