Red
A vivid, warm medium red.
#FF0000
rgb(255, 0, 0)
Color formats
HEX
#FF0000
RGB
rgb(255, 0, 0)
HSL
hsl(0, 100%, 50%)
HSV
hsv(0, 100%, 100%)
CMYK
cmyk(0%, 100%, 100%, 0%)
Color shades
Lighter tints and darker shades of Red.
Lightest
#FFCCCC
Lighter
#FF6666
Base
#FF0000
Darker
#990000
Darkest
#330000
Complementary
The opposite hue on the color wheel.
Analogous
Neighbouring hues that harmonise.
Contrast & readability
Where Red works
Red (#FF0000) is a vivid, warm medium red. Its mid-range lightness makes it a flexible choice for buttons, fills and accents that need to read clearly without overpowering a layout. Its warm undertone gives it an energetic, inviting feel — a good fit for friendly, expressive brands.
Observe the spectrum
More colors related to Red — or browse all reds.
Color tools
Color Format Converter
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Palette Generator
Generate harmonious color palettes from any base color — complementary, analogous, triadic and more, with instant CSS export.
Contrast Checker
Test color contrast against WCAG 2.1 AA/AAA — live pass/fail, font-size rules, and a real component preview.
Shade & Tint Generator
Generate 10–12 step tints and shades from any color — perfect 50–950 UI ramps with CSS and Tailwind export.
Complementary Color Finder
Find the perfect complementary (180° opposite) color for any shade, with HEX/RGB/HSL and contrast info.