noun
blue letter style; mature casual fashion
A Japanese fashion subculture term for a comparatively mature, natural, and understated style, named after fashion magazines whose cover titles are printed in blue (as opposed to the flashier 赤文字系). Often associated with magazines like 美人百花 or 美人百花系.
See also: 赤文字系
青文字系のファッションは、落ち着いた色合いが特徴だ。
Blue letter style fashion is characterized by subdued colors.
彼女は赤文字系よりも青文字系のコーディネートが好きだ。
She prefers blue letter style outfits over red letter style.
赤文字系 refers to a flashier, more trend-driven fashion style associated with magazines whose titles are printed in red, often targeting younger women. 青文字系 is its more mature, understated counterpart.
Compound of 青 (blue) + 文字 (letter/character) + 系 (style/type), literally 'blue letter style'. The term originates from the color of the title text on the covers of certain fashion magazines that promote a more mature, natural aesthetic.