What does 黄色い mean?
黄色い is a Japanese adjective meaning “yellow” in English. It can also be translated as “high-pitched (voice)” depending on context. It is written as 黄色い in kanji, きいろい in hiragana, and kiiroi in romaji. This word is part of JLPT N5 vocabulary.
Example sentence
秋になると葉は黄色くなる。
In autumn the leaves turn yellow.