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LRV Contrast Calculator

LRV Contrast Calculator

by Behzad Gorimar

0 ratings
1 review
🔧 Utilities
Free

Details

  • Released
  • Updated
  • March 20, 2017
  • August 28, 2019

Features

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Behzad Gorimar
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About

Calculate the required Luminance Reflectance Value (LRV) contrast between adjoining materials. Essential for architects, designers, and consultants to meet accessibility standards for low-vision individuals.

✓Calculates LRV contrast percentage
✓Supports USA (ADA) and Australia (AS/NZ) formulas
✓Useful for architects and designers
✓Helps identify building elements for low vision
✓Meets accessibility standards
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What's New in LRV Contrast Calculator

1.1.2

August 28, 2019

Minor UI changes

User reviews

Most RecentHighest RatedLowest Rated

Luminance contrast

This app is great to determine the luminance contrast requirements for compliance with DDA and the APS 2010. It provides the application of 30% to 60% as set out by the AS suite.
Saves a lot of time and money at design stage for architects and interior designers, but also great for checking at completion of a project by applying the LRV value attached to the colour swatch.
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FAQ

What is LRV Contrast Calculator used for?

LRV Contrast Calculator helps determine the percentage difference in light reflectance between two materials. This is crucial for ensuring adequate contrast for individuals with low vision, as recommended by accessibility standards like the ADA and AS/NZ.

Who benefits from using LRV Contrast Calculator?

Professionals such as architects, interior designers, disability access consultants, and product manufacturers benefit from this tool. It assists them in meeting accessibility requirements for building elements and products.

Does LRV Contrast Calculator support different accessibility standards?

Yes, the calculator supports formulas used in both the USA (Americans with Disabilities Act - ADA) and Australia/New Zealand (Standard AS/NZ 1428.4.1-2009). This allows for compliance with regional accessibility guidelines.

How does LRV Contrast Calculator help people with low vision?

By calculating the LRV contrast, the app ensures that important building elements like stair nosings, doorways, and signage have sufficient visual distinction. This aids individuals with impaired vision in navigating and identifying these elements.

What are the recommended LRV contrast ranges?

The Americans with Disability Act Accessibility Guidelines (ADAAG) recommend 70% LRV or higher. The Australian/New Zealand Standard AS/NZ 1428.4.1-2009 requires LRV contrast in a range of 30% to 60%, depending on the building element.

How is LRV measured for use in the app?

LRV, or Luminance Reflectance Value, is a measurement of light reflected from a surface. It can be found using a colorimeter, spectrophotometer, or directly from the manufacturer, often noted on resources like a paint manufacturer's fan deck.

Is LRV Contrast Calculator available on multiple devices?

LRV Contrast Calculator is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

When was LRV Contrast Calculator last updated?

The latest version of LRV Contrast Calculator was released on August 28, 2019. The app was initially released on March 20, 2017.