The current flag of the state of Alabama (the second in Alabama state history) was adopted by Act 383 of the Alabama state legislature on February 16, 1895. The cross of St. Andrew referred to in the law is a diagonal cross, known in vexillology as a saltire. Because the bars must be at least six inches (150 mm) wide, small representations of the Alabama flag do not meet the legal definition. Sepia Tone. Zoom In. Full HD.