Character：ハク（HAKU） Theme color：緑（Green）

【常盤】 #006428

松や杉などの常緑樹の葉の様な青みの濃い緑色。
「常磐」とは”常に変わらないこと”を指す言葉で、平安時代、年中葉の色が変わらない緑の常緑樹のことを「常盤木」と呼び、”永久不変”・”長寿”・”繁栄”などの意味が込められている。

This is Japanese traditional color called "Tokiwa".
Dark green with a bluish tinge, like the leaves of evergreen trees such as pines and cedars.
Since ancient times, an evergreen tree whose leaves did not change color throughout the year was called an “Evergreen tree 常盤木”. And the word have meanings such as "eternal," "longevity," and "prosperity.