Which color combination is NOT part of Delta Kappa Epsilon's official colors?

Delta Kappa Epsilon (DKE) has officially designated blue and old gold as its colors. The other options listed, specifically red and gray, do not represent DKE's official color combination. Each fraternity typically has specific colors that symbolize their values and identity, and adherence to these colors is an important aspect of the fraternity's tradition and representation. Understanding the fraternity's colors can be crucial in recognizing its branding and identity within the Greek community. Thus, the inclusion of blue and old gold aligns with DKE’s heritage, while red and gray do not, confirming that this combination is not part of the fraternity’s officially recognized colors.