Angel O'Day from Angel and the Ape by DC Comics. Based on the original 1968 appearance by Bob Oksner.
Angel and the Ape is a humor comic book created by E. Nelson Bridwell and Bob Oksner published by DC Comics. The characters first appeared in 1968 in Showcase #77 then graduated to their own title, with art by comic artist Bob Oksner, most often inked by Wally Wood. Sister of Dumb Bunny, another obscure 60s character.
No default outfit, she wore something different in each issue.