ColorMeter RGB Colorimeter is a mobile application developed by White Marten UG haftungsbeschraenkt for iPhone, iPad, and iPod touch devices. It is a useful tool for designers and developers working on screen design, CSS, HTML, and web design. The app provides an easy and quick way to determine color values using the device's built-in camera or by selecting an image from the device's photo album.

ColorMeter RGB Colorimeter displays all color values as RGB, HEX, CMYK, HSL, HSV, and Lab. Additionally, the app recommends the best matching CSS color for the eligible color values. The voice output feature also identifies the color and announces its name. The lock-function allows users to have a closer look at any detected color.

Moreover, users can save as many colors as they want in the Color Palette for later use and export the measured colors to other apps or devices via clipboard and CSV. The app is also available for macOS, which is a plus for users who work on multiple devices.

Overall, ColorMeter RGB Colorimeter is a practical and efficient tool for designers and developers who require an accurate color assistant for their projects.