Combining forms for colors
blue
Cyan/o
Color
Combining form
Medical term
black
Melan/o
Cyanoderma
red
Erythr/o
Melanoma
green
Chlor/o
Chlorophyta
Erythroleukemia
Cyanoderma = blue color to skin
Melanoma =  black tumor
Erythroleukemia= increase of red and white blood cells
Chlorophyta = green algae
yellow
Xanth/o
Xanthopsia
Xanthopsia = yellow vision