The chart is a reference of standardized colors, traditionally ranging from deep red to pale yellow or beige. It allows a woman (or a posek, halachic authority) to determine whether a stain found on a bedikah cloth (examination cloth), undergarment, or other surface is tamei (ritually impure) or tahor (ritually pure).
The primary source for the prohibition regarding colored discharges is found in the Torah and expounded upon in the Talmud.
Stains matching these colors generally do not render a woman a Niddah (though they may require evaluation by a Rabbi if there is doubt): niddah color chart
The Niddah color chart is not about finding loopholes. It’s a halachic tool rooted in kindness, removing doubt so a couple can live peacefully ( shalom bayit ) within the framework of Torah law. When in doubt, reach out to a rabbi who is both knowledgeable and sensitive — no question is too small when it comes to preserving the sanctity of this mitzvah.
Many poskim today provide printed or digital color strips. The process is simple: The chart is a reference of standardized colors,
local halachic advisors in your area? AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 13 sites Laws of Stains (Ketamim) - Niddah - Nishmat Yoatzot Halacha Criteria for Stains * The size of the stain. Only a stain larger than the size of a gris, roughly the area of a circle 19 millimet... Nishmat Yoatzot Halacha Taharas Hamishpacha Simplified: Niddah - Mikvah.org In order for a stain to cause the Niddah state, it needs to be found on a WHITE surface. Halacha recognizes two categories for thi... Mikvah.org Niddah - Wikipedia However, the rabbis have declared a woman to be unclean although she has not felt any discharge of blood, but has merely seen eith... Wikipedia Niddah - Wikipedia However, the rabbis have declared a woman to be unclean although she has not felt any discharge of blood, but has merely seen eith... Wikipedia מדריך להלכות טהרת המשפחה, חלק ב, פרק א | ספריית ספריא From the halachic standpoint, bleeding refers to discharge of shades of either red or black. Other colors of uterine discharge suc... ספריא Ask the Rabbi: PUAH Institute Read More. then it depends on the color. There are some brownish colors which are not problematic and there are some brownish colo... PUAH : Fertility The Niddah Status - Nishmat Yoatzot Halacha May 25, 2024 —
Default to chumra (stringency) if it’s ambiguous, but ask a rabbi. Many shades of brown are considered tahor unless they clearly tend toward red. Stains matching these colors generally do not render
Some contemporary poskim permit high-quality color printing or apps, provided they are tested against a master original. However, screen variation makes most smartphone-based charts unreliable. Stick to physical strips kept in good condition (not faded).
The primary purpose of a color chart is to categorize discharges into three main groups based on established Rabbinic guidelines: