> For the complete documentation index, see [llms.txt](https://manis-organization-2.gitbook.io/vortexdocs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manis-organization-2.gitbook.io/vortexdocs/vortex-engine/troubleshooting/2.-color-not-recognized/1.-check-color-input.md).

# 1. Check Color Input:

Ensure that the color name, hex value, or RGB tuple is correct. Vortex supports standard color names, hex values (e.g., `#ff0000`), and RGB tuples (e.g., `(255, 0, 0)`).