#FF0000 Color (Hex and RGB)

#FF0000

rgb(255 0 0) · reads as red

#ff0000 has RGB values (255, 0, 0). This hex code is also a web-safe color equal to #f00. The color reads primarily as red in sRGB space.

Color values

Format	Value	Channels
HEX	`#FF0000`	RFFG00B00
RGB	`rgb(255 0 0)`	R255G0B0
HSL	`hsl(0 100% 50%)`	H0°S100%L50%
OKLCH	`oklch(63% 0.26 29)`	L0.63C0.26H29°
HSV	`hsv(0, 100%, 100%)`	H0°S100%V100%
CMYK	`cmyk(0%, 100%, 100%, 0%)`	C0%M100%Y100%K0%

RGB mix

Red255 100%
Green0 0%
Blue0 0%

Base numbers

Base	R	G	B
Binary	`11111111`	`00000000`	`00000000`
Octal	`377`	`0`	`0`
Decimal	`255`	`0`	`0`
Hex	`ff`	`00`	`00`

Shades & tints

Shades mix #FF0000 with black; tints mix it with white. Click any swatch to explore it.

Shades

Tints

Color harmonies

Complementary

Opposite on the color wheel — maximum contrast.

Analogous

Neighbors 30° either side — calm and cohesive.

Triadic

Three hues spaced 120° apart — vibrant balance.

Monochromatic

Same hue and saturation, different lightness.

Similar brand colors

The closest colors from our brand palettes, measured in OKLab.

Contrast & accessibility

WCAG 2.1 contrast against white and black. Test other pairs in the contrast checker.

#FF0000 on #FFFFFF

4.00:1

AA ✕AAA ✕AA Large ✓AAA Large ✕

#FF0000 on #000000

5.25:1

AA ✓AAA ✕AA Large ✓AAA Large ✓

#FFFFFF on #FF0000