Whimsical Wireframes - Lightning fast wireframing with real-time collaboration.
Color.review - Colors that look and work great for everyone.
Invision - Prototyping and collaboration for design teams
Sim Daltonism - From the perspective of a color blind person, some colors are impossible to distinguish.
Figma Map Maker - Figma plugin to generate map, supporting Google Maps, Mapbox
Coblis - If you are not suffering from a color vision deficiency it is very hard to imagine how it looks...