Colgate only accepted 27% of applicants last year. https://www.colgate.edu/docs/default-source/default-document-library/cds_2015-2016-final_updated-05182016.pdf?sfvrsn=0 Your ACT and GPA put you in the match category (and alumni relation is only considered).
Tulane accepted 30% last year. http://www2.tulane.edu/oair/upload/CDS_2015-2016-Final.pdf Once again your stats make you a match and alumni relation is only considered.
Look here for some potential safeties: http://automaticfulltuition.yolasite.com/