Munehiro Yamamoto submitted the

spotxcolor

package.

Version number: 0.14 2026-03-12 License type: mit

Summary description: Modern Spot Color support for the xcolor package

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This package provides robust and modern spot color (e.g., DIC, PANTONE) support for the `xcolor` package across all major TeX engines (pdfTeX, LuaTeX, XeTeX, and dvipdfmx).

It resolves the structural PDF syntax issues found in the legacy `spotcolor` package and provides a more robust, expl3-based architecture compared to the `colorspace` package.

Key features included in this initial release: - Native `xcolor` integration: `\textcolor` generates true spot color separation plates in pdfTeX and LuaTeX without breaking the color stack. - Safe fallback for dvipdfmx: `\textcolor` safely falls back to a CMYK representation, avoiding parse errors and black-box outputs. - Explicit spot color injection: Added the `\SpotColor` macro to force true spot color output in dvipdfmx and other engines. - Perfect PDF structure: Safely expands variables and manages PDF objects to prevent garbage collection issues and broken cross-references. - Backward compatibility: Seamlessly emulates legacy `spotcolor` macros (e.g., `\AddSpotColor`, `\NewSpotColorSpace`) to reuse existing color dictionaries without modification.

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This package is located at https://mirrors.ctan.org/macros/latex/contrib/spotxcolor

More information is at https://www.ctan.org/pkg/spotxcolor

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Thanks for the upload.

For the CTAN Team Erik Braun

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