Galvanized aluminum flashing is the norm on most roofs, no matter what the roof itself is made from, whether asphalt shingles, cement or tile shingles, or metal roof panels. Galvanized aluminum appears as a silvery color. Metal flashing is also available in other attractive metallic colors, such as bright copper, like that of a new penny; aged copper (a greenish tint); zinc (grayish) or weathered zinc (a kind of blue-gray); and champagne.
Some metal manufacturers offer a wide range of colors for all roofing metal products, including flashing, ranging from almond to terracotta. If you like the look of flashing that coordinates with the color of your roof, you should have no trouble finding a color that does just that. Choose from more than 20 premade colors.
To create a truly exact match, consider painting the flashing yourself. Use a specially manufactured exterior paint offered by several manufacturers, rated for high heat (up to 350 degrees F) and the other hard wear it will receive on a roof. Choose from more than 12 colors in either a spray or brush-on paint type. However, first remove any rust by brushing with a stiff wire brush, then prime with a zinc-based primer before painting the flashing.
Check the condition of your roof flashing periodically to head off leaks before they penetrate your house. Check for rust, loose edges and crumbling caulk or roof cement. Reseal any loose spots with fresh roofing cement. It's much easier to do a little preventive maintenance than to fix a leak in your walls or ceiling.