To determine which natural dye had the best flavor and ... especially when that means adding bright colors. Of course one way to add green is with a bottle of food coloring, but I was curious ...

Are Natural Food Dyes Better? Experts Weigh In on the Pros and Cons Then there's butterfly pea flower extract, another blue color that can be used to "achieve a range of shades including bright ...

Unlike synthetic dyes, these colors are derived from natural resources. From the softest blues to the brightest yellows ... this rare natural color is blue-green algae like spirulina.

Chicago Dyes Its River Bright Green as It Opens St. Patrick's Day Celebrations CHICAGO (AP) — The Chicago River is once again glowing kelly green as the city opens its annual St. Patrick's Day ...