5.66 Castano Chiaro Rosso Intenso/Deep Red Light Brown

A bold, expressive light brown with intense red undertones, perfect for clients who want a vibrant, fiery brunette result. This shade combines depth with high‑impact red reflect, creating a rich, dimensional finish that stays luminous and eye‑catching.

Shade Character

• Level: 5 (Light Brown)

• Tone: .66 (Double Red)

• Result: Deep, vivid red‑brown with strong warmth and shine

Key Benefits

• Delivers intense red vibrancy with brunette depth

• Enhances shine and richness for a dramatic finish

• Ideal for refreshing faded red tones or creating bold transformations

• Suitable for gray blending depending on formulation

• Works beautifully for global color, partial applications, or red‑accented lowlights

Ideal For

• Clients wanting a deep, intense red‑brown

• Enhancing natural brunettes with vivid red tones

• Creating warm, high‑impact color results

• Semi‑permanent or demi‑permanent color services