

今日の空ははいいろですね。
はいいろのコートを着ています。
はいいろはあまり好きじゃないです。
"はいいろ(灰色)" is in the lesson "Colors" (Level 2), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.