LRV Calculator

The tools below assist the design process by calculating compliance with legislation and guidance around visual impairment.

LRV Contrast Calculator (AS/NZ)

Calculates Luminance Contrast percentage using the formula:

= 125*((LRV 2 - LRV 1)/(LRV 1 + LRV 2 + 25))

LRV 1 (Y1, 0-100)

LRV 2 (Y2, 0-100)

Contrast Result

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Enter values to calculate contrast.

Other Resources you might like...

Interested in LRV? Here are some of our other tools you might be interested in.

LRV Chair Design Tool
An aid to achieving visual contrast between the floor and seating.
LRV Scheme Designer
A tool to calculate the visual contrast between multiple LRV's
Visual Contrast and LRV: Training Course
A course equipping designers with an understanding of how provide visual contrast which is both attractive and compliant.

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