Adobe Color CC - Generates color themes that can inspire any project.
DWGFREE - DWGFREE is an online platform that comes with a comprehensive collection of CAD blocks that can be downloaded without the need for registration.
iWantHue - Colors for data scientists. Generate and refine palettes of optimally distinct colors.
CADMAPPER - Instant CAD files for any location on earth
Coolors.co - The super fast color schemes generator! Create, save and share perfect palettes in seconds!
MAPACAD - MAPACAD is an online website that is providing leverage to designers and architectures to have the ability to download CAD map cities that can be directly used in their projects.