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#c7ff21

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

RGB
199, 255, 33
HSL
75°, 100%, 57%
CMYK
22, 0, 87, 0
Luminance
0.8377

Every format

HEX#c7ff21
RGBrgb(199, 255, 33)
HSLhsl(75, 100%, 57%)
CMYKcmyk(22%, 0%, 87%, 0%)
LABlab(93.3 -43.4 86.5)
LCHlch(93.3 96.8 116.7)
OKLCHoklch(0.928 0.226 124.5)

Copy-ready code

/* CSS */
color: #c7ff21;
background-color: #c7ff21;
/* Tailwind (arbitrary) */
class="text-[#c7ff21] bg-[#c7ff21]"
/* SCSS */
$brand: #c7ff21;
/* SwiftUI */
Color(red: 0.780, green: 1.000, blue: 0.129)
/* Android */
Color.parseColor("#c7ff21")

Accessibility — WCAG contrast

Aa
#c7ff21 on white: 1.18:1
AA ✗ fail · AA-large · AAA
Aa
#c7ff21 on black: 17.75:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red78.0%
Green100.0%
Blue12.9%

CMYK percentages

Cyan22.0%
Magenta0.0%
Yellow87.1%
Key (black)0.0%

Color previews

#c7ff21 text on a black background

contrast 17.75:1

Card sample

#c7ff21 text on a white background

contrast 1.18:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #c7ff21;
Background color
Panel with #c7ff21 background
background-color: #c7ff21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #c7ff21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(199, 255, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(199, 255, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #c7ff21;
background: linear-gradient(135deg, #c7ff21, #33FF21);

Monochromatic scale

Palettes built from #c7ff21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #c7ff21 in the Color Lab