Exhibit 23.1 INDEPENDENT AUDITORS' CONSENT Board of Directors and Shareholders OSB Financial Corp. We consent to the incorporation by reference in this Current Report of FCB Financial Corp. on Form 8-K of our report dated January 14, 1997, with respect to the consolidated financial statements of OSB Financial Corp. included in the Joint Proxy Statement/Prospectus dated March 12, 1997, of FCB Financial Corp. and OSB Financial Corp. /s/ Wipfli Ullrich Bertelson LLP Wipfli Ullrich Bertelson LLP May 9, 1997 Green Bay, Wisconsin