crimson

US /ˈkrɪm.zən/
UK /ˈkrɪm.zən/
1.

クリムゾン

a rich deep red color inclining to purple.

1.

クリムゾン

of a rich deep red color inclining to purple.

:
she blushed crimson with embarrassment
1.

クリムゾン

(of a person's face) become flushed, especially through embarrassment.

:
my face crimsoned and my hands began to shake