#2C3E50 #34495E #3498DB #2980B9 #BDC3C7 #7F8C8D #999999 #666666 #FFFFFF #F5F5F5 #F8F9FA #E9ECEF #E0E0E0 #E9ECEF #2C3E50 #6C757D #495057 #FFFFFF #28A745 #FFC107 #DC3545 #17A2B8 #E81123 #FF4444 #E53E3E #000000 #2C3E50 #34495E