Do you mean “brown resistor color code”, the color brown component (like wire, PCB board, or casing), or just the color description in electronics? In electronics, brown most often refers to: 🔹 1. Resistor Color Code (Brown) Digit Value: 1 Multiplier: 10¹ = 10 Tolerance (if last band): ±1% Example: Brown-Black-Red = 1 (brown), 0 (black), ×100 (red) → 1,000 Ω (1kΩ). 🔹 2. Wire Color (Brown) In AC wiring (IEC standard): Brown = Live (Phase/Hot) wire Blue = Neutral Green/Yellow = Earth (Ground) ⚠️ Touching the brown live wire is dangerous when powered. 🔹 3. PCB/Components Some fiberglass (FR4) or older phenolic PCBs appear brown. Some casings, connectors, or insulators are also made in brown for identification.