Why does my blue button appear pale grey on Meta Ray-Ban display glasses?

Hi,

I am building an Android app for Meta Ray-Ban display glasses and trying to show a blue-colored button on the glasses display for testing color visibility. But instead of appearing solid blue, the button looks pale grey, with only a slight blue visible near the border.

Is this due to display limitations, color rendering, brightness, or Ul styling?

Are there recommended colors or contrast settings to make colored elements more visible on the glasses display?