Niddah Color Chart (Verified)

Here’s a draft for a blog post that explains the clearly and sensitively.

A Niddah color chart is an educational tool designed to help women practicing Taharat HaMishpacha (Family Purity) identify whether a stain or discharge is halakhically "pure" or "impure." In Jewish law, the status of Niddah is triggered by uterine bleeding, which is identified by specific colors. While traditionally only four shades of red and one of black were considered impure, the precise ability to distinguish these shades was lost over time, leading modern practice to treat any shade of red or black as potentially problematic. The Halakhic Spectrum of Colors niddah color chart