Iron oxides make beautiful, lightfast, and safe colors. Gamblin's Reclaimed Colors are as safe as any other iron oxide based color, such as Mars Black and Venetian Red.
Brown Ochre: Naturally opaque and warm with a golden undertone. Lightfastness II (Very good)
Rust Red: In its transparency, it carries the warm colors of rusty water. From the tube and in mixtures, Gamblin Rust Red is exactly what you'd expect: an earthy red-orange. Lightfastness I (Excellent)
Iron Violet: This will likely be many artists' favorite Reclaimed color. Meet the first mauve Gamblin has ever made. Straight from the tube, it's a deep, earthy violet. Add white and it becomes the violet you see in clouds at sunset or dawn. Lightfastness I (Excellent)
Gamblin collaborated with engineer Guy Riefler and artist John Sabraw to develop Gamblin Reclaimed Earth Colors. The purchase of this oil paint set supports a hard-working team of teachers and students making the Ohio and Mississippi Rivers healthier ecosystems.
Gamblin is the first company to make paint, or any product for that matter, with these pigments. They ignored the development costs, set the price low, and are donating over 20% of sales on the set back to support the project.
Read the full story here: https://gamblincolors.com/reclaimed-earth-colors/