White on redBlack on red

Shades to explore

RED FAMILY

Red colour code

#FF0000

Red (#FF0000) is a medium-light, vivid shade in the red family. Its HSL lightness is 50% and saturation is 100%.

HEX#FF0000
RGBrgb(255, 0, 0)
HSLhsl(0, 100%, 50%)

Text contrast

With white: 4.00:1 · With black: 5.25:1

Normal text needs 4.5:1 for AA; large text needs 3:1.

Use Red in CSS

Copy this background and text pairing into your stylesheet.

.colour-red {
  background-color: #FF0000;
  color: #000000;
}

Use the HEX value for a consistent digital reference. Descriptive colour names can vary between collections and are not always valid CSS keywords. This code does not identify a paint, fabric or print specification.

Using Red

Try it for a small call-to-action or a highlight in a presentation. Pair colour with a label when communicating an error or warning.

Black text on Red

5.25:1 · AA for normal text

This pairing uses #000000 text on #FF0000. Results apply to solid colours; recheck contrast if you add transparency, imagery or effects.

Colour companions

Similar shades in the red family