13 named colors starting with the letter O, with hex codes and visual swatches.
Ocean Blue
#0077BE
Blue
Oxford Blue
#002147
Olive
#808000
Green
Orchid
#DA70D6
Purple
Orchid Pink
#F2BDCD
Pink
Old Lace
#FDF5E6
White
Outer Space
#414A4C
Gray
Onyx
#353839
Black
Obsidian
#3C3C3C
Oil
#281E15
Old Gold
#CFB53B
Gold
Opal
#A8C3BC
Teal
Oxblood
#4A0000
Burgundy
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