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Measure the LRV of materials instantly with the Cromocon LRV Meter

Get this free ground-breaking CROMOCON LRV METER APP (PICO) onto your smartphone now to run the CROMOCON LRV METER!
Pair your charged meter with this APP, then measure the LRV of materials instantly. Light Reflectance Values (LRV) are needed by access consultants, manufacturers, design and construction industries around the world.

The Light Reflectance Value (LRV) measurement of a material surface is on a scale from 0% BLACK to 100% for WHITE. If a material is measured 9 times then averaged the LRV number may be referenced to your BS 8493. The meter can auto-average for you.

It’s quick and easy:
- Displays the measurement fast
- Measures the material surface in seconds
- Used by building materials and product designers, and architects
- Check LRV specifications!
- Is a unique ‘must-have’ for all construction professionals


This CROMOCON LRV METER APP runs the CROMOCON LRV METER. It provides the LRV measurements used to calculate the CONTRAST between two adjacent surfaces - like paving and a wall, or a wall and a door for example; so visually impaired people can experience environments safely. CONTRAST ensures that an object, element, or text in signage for example is VISIBLE or NOT VISIBLE to 93% of visually impaired people (VIP).


Allows the phone user auto-renewals when alerted to upgrades. Meter users get assistance measuring with the meter.


2012 Designing Inclusive Systems: Visibility Prediction Software: Five Factors of Contrast Perception for People with Vision Impairment in the Real World - Chapter 10. Dalke, H., Corso, A., Conduit, G., Riaz, A., Edit: Langdon, P., Clarkson, J., Robinson, P. CWUAAT Workshop 2012, Cambridge University UK. Springer Verlag publication March 2012. - ISBN 978-1-4471-2866-3. e-ISBN 978-1-4471-2867-0 pp93-102

1999 Disability in Great Britain: results from the 1996/97 disability survey Technical Report 94. - Grundy, E., Ahlburg, D., Ali, M., Breeze, E. & Sloggett, A. (1999). Dept of Social Security: London

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No part of this software may be reproduced in any format without the authoring and copyright bodies’ express approval. This software is intended as a non-exhaustive guide only. We make every effort to ensure the accuracy and quality of information and guidance; however, we can take no responsibility for the subsequent use of this information, nor for any errors or omissions that it may contain. Those using this software must therefore exercise professional skill, judgment and care and accept full responsibility for any injury, loss, damage or delay arising from its use, reference or other guidance.

What’s New

Version 1.0.0

This app has been updated by Apple to use the latest Apple signing certificate.

App Privacy

The developer, Palette, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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