Two MCP servers for color-vision accessibility: palette/image colorblind-safety
checking with the conflicting pairs named, colorblind-safe palette generation,
image recoloring for protan/deutan/tritan, and Ishihara-style plate generation.
Machado, Oliveira & Fernandes (2009) + CIEDE2000; method published open access
at doi.org/10.5281/zenodo.21310578. Local stdio, no network calls.
