Dark Brown (643F48) — Shades, Harmonies, Palettes, CSS Code

"Dark Brown"

Earth · Winter

🧠 Psychology

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

✨ Uses

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

Tip

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

Values

HEX #643F48

RGB rgb(100, 63, 72)

HSL hsl(345°, 23%, 32%)

CMYK C:0% M:37% Y:28% K:61%

Luminance 0.0646

WCAG Accessibility

On white 8.95:1

Aa — #643F48

Secondary text

✓ AA ✓ AAA ✓ AA Large

On black 2.35:1

Aa — #643F48

Secondary text

✗ AA ✗ AAA ✗ AA Large

50 100 200 300 400 500 600 700 800 900 950

All harmonies

Complementary

#643F48 #3F645B

Analogous

#643F5B #643F48 #64483F

Triadic

#643F48 #48643F #3F4864

Split-comp.

#643F48 #3F6448 #3F5B64

Tetradic

#643F48 #5B643F #3F645B #483F64

Monochromatic

#C1AEB3 #95757D #5C474C #3F3134 #141011

Suggested palettes for this hue.

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