Here is another smart sensor you can use to detect and capture colors everywhere you go. The Nix Mini Color Sensor weighs only 0.6 ounces. It fits on your keychain and lets you measure color on most surfaces and find matches on your Android or iOS device.
The device connects to your smartphone via Bluetooth. You can match colors, save custom color palettes, and locate paint stores around you. The Nix Color Sensor costs under $80 at this time.