As nouns the difference between maroon and crimson is that maroon is an escaped negro slave of the caribbean and the americas or a descendant of escaped slaves or maroon can be a dark red, somewhat brownish, color or maroon can be (nautical) a rocket fired to summon the crew of a lifeboat or maroon can be (slang|derogatory) an idiot; a fool while crimson is a deep, slightly bluish red. As adjectives the difference between maroon and crimson is that maroon is associated with maroon culture, communities or peoples or maroon can be of a maroon color while crimson is having a deep red colour. As verbs the difference between maroon and crimson is that maroon is to abandon in a remote, desolate place, as on a deserted island while crimson is to blush.