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...
Easometric Figma Plugin - With Easometric it's really easy to create isometric layers.
Colorblind Web Page Filter - Enter a URL, and this tool will render it as someone with color blindness will see it.
Wireframe for Figma - Lightning fast wireframing on figma (500+ elements)