LRV Scheme Designer
There is a common misconception that 'visual contrast' is a generic term and can be achieved through the use of bold colours.
To comply with UK regulations, a mathmatical calculation must be completed to achieve appropriate contrast levels between specific surfaces.
The tool below makes this easy- and enables clever solutions that are attractive as well as compliant.
What is LRV?
LRV- 'Light Reflectance Value'
LRV is a measurement of the quantity of light reflected from a surface, expressed as a percentage from 0-100%
When does LRV need to be considered?
WIthin the UK, LRV values must be calculated to ensure compliance with buildings regulations.
For further information please see Approved Documents M, K & T, or Spira's training course- 'Visual Contrast & LRV'.
Do I need to use bold colours to achieve 'visual contrast'?
Not necessarily, visual contrast is achieved by having appropriate LRV contrast levels, which is different from hue (colour). Whilst many designers do use vivid colours, this can result in a scheme looking institutional or eroding the design intent.
It is entirely possible to achieve a scheme which is both attractive and compliant.
Why is LRV important?
This is an often overlooked area of accessible design. Having appropriate visual contrast enables a variety of users to independently navigate a space.
Users who benefit from an LRV compliant interior include:
- The visually impaired
- The elderly
- People with Dementia, or other cognitive impairments
- People with neurodiversities
- Anyone, in a low light or emergency situation
