EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the use in this Amendment No. 2 Registration Statement No. 33- 37674 of Colorado Business Bankshares, Inc. of our report dated February 25, 2000, on Form S-1 of our report dated February 25, 2000, appearing in the Prospectus, which is a part of this Registration Statement, and to the reference to us under the headings "Summary Consolidated Financial Data" and "Experts" in such Prospectus. DELOITTE & TOUCHE LLP Denver, Colorado June 15, 2000