Light Reflectance Value (LRV) measures the percentage of light a color reflects. It's important in design for accessibility, as it helps determine the contrast between different surfaces, aiding visibility for people with visual impairments. High contrast is essential for readability and ease of navigation in various environments.

A LRV Contrast Value above 70% is typically recommended.

The LRV for a color is calculated using a formula that factors in the red, green, and blue (RGB) values of the color, adjusted for human vision. It's a measure of the percentage of visible light reflected from a surface.