Colored gold
![Ternary plot of different colors of Ag-Au-Cu alloys](/Images/godic/202501/15/Ag-Au-Cu-colours-english.svg5719.png")
![Rhodium-plated white gold wedding ring](/Images/godic/202501/15/White-gold--rhodium-plated5719.jpg")
![Gold-aluminium phase diagram](/Images/godic/202501/15/Phasendiagramm_Gold-Aluminium.svg5719.png")
Pure gold is slightly reddish yellow in color, but colored gold in various other colors can be produced.
Colored golds can be classified to three groups:
Pure 100% gold is 24 karat by definition, so all colored golds are less than this, with the common being 18K (75%), 14K (58%), and 9K (38%).