import time
from machine import Pin
led=[25,26,27]
colors=["blue","green","red"]
for i in range (len(led)):
    led[i]=Pin(led[i],Pin.OUT,value=1)
while True:
    x=input("Enter a color: ")
    x=x.lower()
    if x in colors:
        led[colors.index(x)].value(0)
    else:
        print ("color not in list")