Reference

Reading Resistor Color Codes

Resistors in SpiceBook schematics use color-coded bands — the same EIA standard printed on physical components. Each colored segment of the zigzag symbol encodes a digit, multiplier, or tolerance value.

1st digit Brown = 1 2nd digit Black = 0 Multiplier Orange = ×1kΩ Tolerance Gold = ±5% 10 kΩ ±5%
Color Digit Multiplier
Black 0 ×1 Ω
Brown 1 ×10 Ω
Red 2 ×100 Ω
Orange 3 ×1 kΩ
Yellow 4 ×10 kΩ
Green 5 ×100 kΩ
Blue 6 ×1 MΩ
Violet 7 ×10 MΩ
Gray 8 —
White 9 —

Tolerance

Gold ±5% Silver ±10%