Target group 

Young adults
Older adults
Low vision
Color deficiency : protan
Color deficiency : deutan

Illuminance level of environment 

Photopic level 500lx
Mesopic level 0.5lx
(for low vision, mesopic level is 3lx)

Target color 

Choose one nearest value of target color. Then, select one color from the Munsell Chart.

Hue :
Value :
Chroma :