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#ff3d21

a balanced, electric red · warm · closest name: red

RGB
255, 61, 33
HSL
8°, 100%, 57%
CMYK
0, 76, 87, 0
Luminance
0.2471

Every format

HEX#ff3d21
RGBrgb(255, 61, 33)
HSLhsl(8, 100%, 57%)
CMYKcmyk(0%, 76%, 87%, 0%)
LABlab(56.8 70.6 59.4)
LCHlch(56.8 92.3 40.1)
OKLCHoklch(0.655 0.233 31.4)

Copy-ready code

/* CSS */
color: #ff3d21;
background-color: #ff3d21;
/* Tailwind (arbitrary) */
class="text-[#ff3d21] bg-[#ff3d21]"
/* SCSS */
$brand: #ff3d21;
/* SwiftUI */
Color(red: 1.000, green: 0.239, blue: 0.129)
/* Android */
Color.parseColor("#ff3d21")

Accessibility — WCAG contrast

Aa
#ff3d21 on white: 3.53:1
AA ✗ fail · AA-large · AAA
Aa
#ff3d21 on black: 5.94:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red100.0%
Green23.9%
Blue12.9%

CMYK percentages

Cyan0.0%
Magenta76.1%
Yellow87.1%
Key (black)0.0%

Color previews

#ff3d21 text on a black background

contrast 5.94:1

Card sample

#ff3d21 text on a white background

contrast 3.53:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #ff3d21;
Background color
Panel with #ff3d21 background
background-color: #ff3d21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #ff3d21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(255, 61, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(255, 61, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #ff3d21;
background: linear-gradient(135deg, #ff3d21, #FFD121);

Monochromatic scale

Palettes built from #ff3d21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #ff3d21 in the Color Lab