The is a standardized system used to identify the resistance value, tolerance, and sometimes the temperature coefficient of through-hole (axial) resistors. Because these components are often too small for clear text printing, a series of colored bands is painted around the body to provide all necessary electrical information at a glance. The Master Resistor Color Chart
Every color in the system corresponds to a specific number, multiplier, or percentage. The standard colors follow the digit sequence . Digit Value Multiplier ( 10n10 to the n-th power Temp. Coeff. (ppm/K) Black ×1cross 1 Brown ×10cross 10 Red ×100cross 100 Orange Yellow Green Blue Violet Gray White Gold ×0.1cross 0.1 Silver ×0.01cross 0.01 Sources: How to Read a Resistor: Step-by-Step resistor color code
To read the bands correctly, you must first orient the resistor. The is a standardized system used to identify