I’m going to list the colors in Japanese. I’ll also list them in the kanji and hiragana/katakana.

black – Kuro (くろ)(黒)

blue – Ao (あお)(青)

light blue – mizuiro (みずいろ)(水色)

brown – Chairo (ちゃいろ)(茶色)

golden – kiniro (きんいろ)(金色)

red – Aka (あか)(赤)

white – Shiro (しろ)(白)

pink – Momoiro (ももいろ)(桃色)

pink – pinku (ピンク)

orange – daidaiiro (だいだいいろ)(橙色)

green – midori (みどり)(緑)

light green – kimidori (黄緑)

yellow – kiiro (きいろ)(黄色)

purple – murasaki (むらさき)(紫)

grey – haiiro (はいいろ)(灰色)

grey – nezu (ねず)