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Spira has produced design tools and a learning module to aid better understanding of visual contrast requirements.

What does the term 'visual contrast' really mean?
By understanding the metrics behind the regulations, it enables the design of attractive and compliant schemes.
The only tool of it's kind. This design tool measures LRV contrast levels across an entire interior scheme and provides live feedback to ensure compliant with UKÂ legislation.
A simple tool automating the formula required to calculate the contrast between two light reflectance values (LRV).