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#37fb21

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

RGB
55, 251, 33
HSL
114°, 97%, 56%
CMYK
78, 0, 87, 2
Luminance
0.6992

Every format

HEX#37fb21
RGBrgb(55, 251, 33)
HSLhsl(114, 97%, 56%)
CMYKcmyk(78%, 0%, 87%, 2%)
LABlab(87.0 -80.8 79.0)
LCHlch(87.0 113.0 135.7)
OKLCHoklch(0.861 0.280 141.9)

Copy-ready code

/* CSS */
color: #37fb21;
background-color: #37fb21;
/* Tailwind (arbitrary) */
class="text-[#37fb21] bg-[#37fb21]"
/* SCSS */
$brand: #37fb21;
/* SwiftUI */
Color(red: 0.216, green: 0.984, blue: 0.129)
/* Android */
Color.parseColor("#37fb21")

Accessibility — WCAG contrast

Aa
#37fb21 on white: 1.40:1
AA ✗ fail · AA-large · AAA
Aa
#37fb21 on black: 14.98:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red21.6%
Green98.4%
Blue12.9%

CMYK percentages

Cyan78.1%
Magenta0.0%
Yellow86.9%
Key (black)1.6%

Color previews

#37fb21 text on a black background

contrast 14.98:1

Card sample

#37fb21 text on a white background

contrast 1.40:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #37fb21;
Background color
Panel with #37fb21 background
background-color: #37fb21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #37fb21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(55, 251, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 251, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #37fb21;
background: linear-gradient(135deg, #37fb21, #21FB9C);

Monochromatic scale

Palettes built from #37fb21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #37fb21 in the Color Lab