gsp-color

This is a standalone composable skill. It works two ways:

1. Standalone — user runs /gsp-color directly for palette exploration, contrast checking, or full system design
2. As a building block — the creative-director invokes /gsp-color --enrich to add technical precision to creative color choices

Input: Hex colors, --preview, --enrich, or interactive Output: color-system.md chunk + palettes.json (OKLCH scales) Agent: None — inline skill, deterministic palette generation + contrast math

<execution_context> @${CLAUDE_SKILL_DIR}/chunk-format.md </execution_context>