In Japanese, all colors are treated as nouns, unlike English (Colors are treated as adjectives or nouns in English). Click here to see how to write the colors of the rainbow in kanji. Please check out my article, "Japanese Conception of Red".

Click link to hear the pronunciation.

iro ? --- colors
ao ? --- blue
aka ? --- red
chairo ?? --- brown
daidaiiro ?? --- orange
haiiro ?? --- grey
kiiro ?? --- yellow
kimidori ?? --- light green
kuro ? --- black
midori ? --- green
mizuiro ?? --- light blue
momoiro ?? --- pink
murasaki ? --- purple
shiro ? --- white
Sukina iro wa nan desu ka.

?????????? --- What is your favorite color?