import re
strs = ["#FFFFFF","#000000","#aAAaaA","#050505","###93#0b0B0b1B34", "#000100"]
for s in strs:
m = re.search(r'#([0-9A-Fa-f]{2})\1{2}', s, flags=re.I)
if m:
print("{} MATCHED".format(s))
else:
print("{} DID NOT MATCH".format(s))
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