KanjiJLPT N4
Blue

blue, green

Mnemonic

A sheep perches on a hill beneath the moon, its fleece shimmering blue. The moon casts everything in cold blue light — the grass, the stones, even the sheep's breath turns to blue mist. This young lamb, fresh and wide-eyed, is lost in an infinite blue glow.
Additional thoughts
Picture white wool turned completely blue by moonlight. Sheep sits on top, moon below — matching the kanji's structure. The innocent lamb bathed in blue captures youth and freshness.
Quick recall
A sheep beneath the moon glows blue.

Details

The keyword for 青 is blue. This kanji represents the color blue, though in traditional Japanese usage it can also encompass shades of green, reflecting an older cultural understanding where blue and green were not always distinguished. It is commonly used to describe the color of the sky, the sea, and youthful vitality. By extension, it carries connotations of youth, inexperience, and freshness, much like the English expression "green" when referring to someone who is new or naive.
On'yomi
せい、しょう
Kun'yomi
あお、あお-、あお.い