Start with a main color, add one supporting color, and name a pattern or visual theme. Then say whether the result should feel subtle, playful or bold. For example: “Midnight blue base, electric cyan contour lines, a calm geometric pattern, generous dark space, no lettering or logos.” Use the limited prompt space for visible design choices instead of a long story. Begin with a simple direction, review it, and change one main detail for the next version.
Keep exact names, slogans, registration numbers and business logos out of the generated artwork when accuracy matters. Ask for a concept without lettering, then create your wording with the manual text tool or upload the logo as a separate image layer. These new layers can be positioned and resized; they do not erase marks already inside the AI image. Check your own lettering in the 3D view to see whether it stays readable around panel edges.
When you upload a reference, explain what should carry over and what should change. “Use the warm palette, but replace the dense floral pattern with large abstract shapes” is more useful than asking for an exact copy. A reference guides the overall direction rather than guaranteeing identical artwork or precise placement. Use images you have permission to upload, especially for business projects, and keep your most important composition request easy to identify.