Red #FF0000

CSS Named Color / Web Safe Color

Copy-ready color values

HEX#FF0000

RGBrgb(255, 0, 0)

HSLhsl(0, 100%, 50%)

HSVhsv(0, 100%, 100%)

CMYK approx.cmyk(0, 100, 100, 0)

Color value table

Format	Value	Copy
HEX	`#FF0000`
RGB	`rgb(255, 0, 0)`
HSL	`hsl(0, 100%, 50%)`
HSV	`hsv(0, 100%, 100%)`
CMYK approx.	`cmyk(0, 100, 100, 0)`
CSS keyword	`red`

Contrast and classification

DarkLightness4.00:1Contrast with white5.25:1Contrast with blackMagenta / PurpleColor family

Shade and tint preview

White 10%
#FF1A1A

White 30%
#FF4D4D

White 70%
#FFB3B3

White 90%
#FFE6E6

Black 10%
#E60000

Black 30%
#B30000

Black 70%
#4D0000

Black 90%
#1A0000

Harmony palettes

Complementary

#00FFFF

#3DFFFF

Analogous

#E0001F

#FF0000

Triadic

#0000FF

#00FF00

Split complementary

#2EFFFF

#00D1D1

Using Red

Red works best when it is chosen with contrast, surrounding colors, and interface state in mind. Use the HEX value for static CSS, RGB when you need channel-level control, and HSL when adjusting lightness or saturation for hover states. The CMYK value is an approximate screen-to-print conversion, so print workflows should still rely on calibrated design software or a printer profile.

CSS, SCSS, and Tailwind examples

:root {
  --color-red: #ff0000;
}

.button-primary {
  background: var(--color-red);
  color: #000000;
}

$red: #ff0000;

// Tailwind arbitrary value
class="bg-[#ff0000] text-white"