Pure Red (FF181B) — Shades, Harmonies, Palettes, CSS Code

"Pure Red"

Red · Winter

🧠 Psychology

Color of energy and passion. Red stimulates attention and evokes urgency, love or strength.

✨ Uses

CTAs, alerts, fashion, beauty, food, sport.

Tip

Pure Red pairs ideally with #F7F5F0 (off-white) and a neutral background for a modern, readable result.

Values

HEX #FF181B

RGB rgb(255, 24, 27)

HSL hsl(359°, 100%, 55%)

CMYK C:0% M:91% Y:89% K:0%

Luminance 0.2171

WCAG Accessibility

On white 3.89:1

Aa — #FF181B

Secondary text

✗ AA ✗ AAA ✓ AA Large

On black 5.4:1

Aa — #FF181B

Secondary text

✓ AA ✗ AAA ✓ AA Large

50 100 200 300 400 500 600 700 800 900 950

All harmonies

Complementary

#FF181B #1AFFFB

Analogous

#FF1A90 #FF181B #FF881A

Triadic

#FF181B #1DFF1A #1A1DFF

Split-comp.

#FF181B #1AFF88 #1A90FF

Tetradic

#FF181B #90FF1A #1AFFFB #881AFF

Monochromatic

#490405 #AA090C #F42528 #F65558 #FA9EA0

Suggested palettes for this hue.

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