Urine Colour Chart

One of the simplest means of assessing proper hydration levels

Order the Urine Colour Chart 

Because the colours in this chart need to be reproduced accurately, health care professionals should only use a correctly printed version.

So, if you would like an example of this chart for use in your local health care community, simply contact us by clicking here and we will be happy to provide you with one.

hydration colour chart

How to use the Urine Colour Chart to determine if you are dehydrated?


Professor Armstrong explains how to use the Urine Colour Chart as a practical tool to determine your hydration state.


The Urine Colour Chart allows anyone to assess the colour of their urine. Ideally, urine should be pale yellow or ‘straw-coloured’, corresponding with a state of optimal hydration. 

The darker the colour, the more concentrated the urine and the more dehydrated the patient.


The origins of the Urine Colour Chart


Professor Armstrong explains how he developed his Urine Colour Chart.


During a field study in 1988, Professor Armstrong was involved in a two-week study in Texas in which individuals exercised heavily in very hot weather.


It was by creating a pyramid of samples collected in this environment, that Professor Armstrong realized that the colour of urine could be a reflection of an individual’s hydration status.


The urine color chart is registered with the U.S. Patent and Trademark Office and with the European Office for Harmonization in the Internal Market, Trademarks and Designs. It is reproduced with permission from Lawrence E. Armstrong,University Professor. Urine color may be influenced by the content of diet or medical treatments.


For more information about Professor Armstrong and the Urine Colour Chart visit http://www.hydrationcheck.com.


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Expert Working Group

Our Expert Working Group meet regularly to discuss the importance of healthy hydration and to develop strategies to encourage patients and the general public to adopt healthier hydration practices.

Prof. Max Lafontan
INSERM Unit 858, University of Toulouse, France
Prof. David Haslam
Watton-at-Stone, Hertfordshire / National Obesity Forum, UK
Prof. Hardinsyah
Bogor Agricultural University, Indonesia
Prof. Jean-François Duhamel
CHU de Caen, France
Dr. Simón Barquera
National Institute of Public Health, Cuernavaca, Mexico
Prof. Lawrence E. Armstrong
University Professor, specialist in sports physiology and expert in hydration, Connecticut, USA

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