Please enter the Luminance Reflective Value (LRV) for both the colours below:

Please enter first sample LRV :

Please enter Second sample LRV :

Luminance Contrast :

Results
Colours are suitable for building elements that require 30% contrast.  
Colours are suitable for Discrete TGSI's where 45% contrast is required.  
Colours are suitable for Composite TGSI's where 60% contrast is required.