Suggestions for Colortab

The following packages have something in common with the package Colortab. The packages are ordered in decreasing similarity.

Package wichura-table: Table macros for plain TeX (and LaTeX)
Package farbe: Color management (conversion, names) for LuaTeX implemented in Lua
Package colortbl: Add colour to LaTeX tables
Package lutabulartools: Some useful LuaLaTeX-based tabular tools
Package tap: TeX macros for typesetting complex tables
Package cmyk-hax: A TeX macro package for colour manipulation (using PostScript)
Package hlist: Horizontal and columned lists
Package cals: Multipage tables with wide range of features
Package nox: Adaptable tables
Package topiclongtable: Extend longtable with cells that merge hierarchically
Package multicoltab: Free flow table for multicols layouts
Package colortex: Colour facilities for use with TeX
Package tangocolors: Use colors from the Tango color palette
Package colorinfo: Retrieve colour model and values for defined colours
Package colorwav: Colours by wavelength of visible light
Package coloring: Define missing colors by their names
Package colorweb: Extend the color package colour space
Package darkmode: General Dark Mode Support for LaTeX-Documents
Package latexcolors: Use color definitions from latexcolor.com
Package ninecolors: Select colors with proper WCAG color contrast
Package opencolor: Definitions from the Open Color library
Package palette: Create palettes for colors and symbols that can be swapped in
Package spotxcolor: Modern spot color support for the xcolor package
Package svgcolor: Define SVG named colours
Package spotcolor: Spot colours for pdfLaTeX
Package udepcolor: University of Piura (UDEP) institutional and corporate colors for digital and electronic media
Package colorspace: Provides PDF color spaces
Package autotab: Generating tabulars from input data
Package luaprogtable: Programmable table interface for LuaLaTeX
Package sltables: Simplified tables for LaTeX
Package slashbox: Both column and row headings in a tabular cell