Access Allways Luminance Contrast Calculator
Welcome to Access Allways’ Luminance Contrast Calculator — your trusted tool for measuring visual contrast between surfaces quickly and accurately. Based on the Australian Standard AS/NZS 1428.4.1:2009, our calculator helps builders, designers, and architects ensure their projects meet essential accessibility requirements.
Why Luminance Contrast Matters
Luminance contrast between adjacent surfaces is crucial for people with vision impairments. Proper contrast helps in wayfinding, improves safety, and supports universal design principles. Our calculator evaluates the Light Reflectance Values (LRVs) of two surfaces to determine whether your colour choices meet the recommended thresholds.
How Our Calculator Works
Simply enter the LRVs of the two surfaces you want to compare, and the calculator will display the luminance contrast percentage along with pass/fail results based on standards for 30%, 45% or 60% luminance contrast.
Check Your Colour Contrast
Enter the Light Reflectance Value (LRV) of two colours to check luminance contrast compliance.
