Its RED . Thered comes from the fact the blood molecule has an iron (III) [Fe^(3+] ion at its centre. The ion 'Iron (III) is RED in colour. In the lab. look at the colour of iron(III) chloride and iron(II) chloride. Iron (III) chloride is red/brown in colour and iron(II) chloride is green in colour.
silver
green
iron
Brown
red and black (in iron man 2)
Rust colour! Answer Iron does not tarnish it will simply rust.
sausage
grey
YELLOW
Iron.
yellow or brown