Brain Wave Name

Frequency Range (in Hz)

Colour Code

Delta

0.80 - 4.50 Hz

Red

Theta

4.75 - 6.75 Hz

Orange

Alpha1

7.00 - 9.50 Hz

Yellow

Alpha2

9.75 - 12.50 Hz

Green

Beta1

12.75 - 18.50 Hz

Turquoise

Beta2

18.75 - 35.00 Hz

Blue