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#55ef21

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

RGB
85, 239, 33
HSL
105°, 87%, 53%
CMYK
64, 0, 86, 6
Luminance
0.6377

Every format

HEX#55ef21
RGBrgb(85, 239, 33)
HSLhsl(105, 87%, 53%)
CMYKcmyk(64%, 0%, 86%, 6%)
LABlab(83.8 -72.4 76.5)
LCHlch(83.8 105.3 133.4)
OKLCHoklch(0.837 0.260 139.9)

Copy-ready code

/* CSS */
color: #55ef21;
background-color: #55ef21;
/* Tailwind (arbitrary) */
class="text-[#55ef21] bg-[#55ef21]"
/* SCSS */
$brand: #55ef21;
/* SwiftUI */
Color(red: 0.333, green: 0.937, blue: 0.129)
/* Android */
Color.parseColor("#55ef21")

Accessibility — WCAG contrast

Aa
#55ef21 on white: 1.53:1
AA ✗ fail · AA-large · AAA
Aa
#55ef21 on black: 13.75:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red33.3%
Green93.7%
Blue12.9%

CMYK percentages

Cyan64.4%
Magenta0.0%
Yellow86.2%
Key (black)6.3%

Color previews

#55ef21 text on a black background

contrast 13.75:1

Card sample

#55ef21 text on a white background

contrast 1.53:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #55ef21;
Background color
Panel with #55ef21 background
background-color: #55ef21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #55ef21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(85, 239, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(85, 239, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #55ef21;
background: linear-gradient(135deg, #55ef21, #21EF76);

Monochromatic scale

Palettes built from #55ef21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #55ef21 in the Color Lab