0033 赤

赤

This character means 'red,' and is pronounced SEKI and aka in Japanese, chì in Chinese.

This is actually composed of contractions of

大,

meaning ‘man,’ written in an old style (now this character means ‘big’), and

火 , 

meaning ‘fire.’

Here’s an archaic version:

The idea is that a man is blushing because of anger, yielding ‘red.’