I don't think Arts & Crafts philosophy was explicitly against bright colors, but they did emphasize tradition, or at least their romanticized idea of it. The la

I don't think Arts & Crafts philosophy was explicitly against bright colors, but they did emphasize tradition, or at least their romanticized idea of it. The latter 19th century saw introduction of many bright pigments and dyes (lots of them toxic), so they were available, but I think use of them was associated with modern industry. William Morris in particular just favored the dark and muted. His stained glass windows are the darkest I know of, and his Kelmscott Press books have been criticized for their very dark pages.