ColourIdentifier

Name that colour.
Copy its code.

Matching a colour you have seen in a photo, logo or app screenshot usually means guessing, or moving the image to a computer and opening an editor. ColourIdentifier does it on the phone: open the image, tap the spot and read the result.

Who it helps: anyone matching paint, clothing or brand colours from a picture, and designers or developers who need the hex code of a colour in a screenshot.

What it does.

• Import a photo or screenshot through Android’s file picker, or take a new photo
• Tap to sample one pixel, or turn on Rectangle mode and drag to average an area
• Shows a colour swatch, the nearest CSS colour name (such as Light Sky Blue), the hex code and rgb() value
• Copy either value to the clipboard
• Works offline: images are processed on the device and no network permission is needed

Tech stack

• C#
• .NET 10
• .NET MAUI
• Android

The application.

Install and
pick a colour.

1. Download the APK from the latest ColourIdentifier release on GitHub. It is sideloaded, not distributed through Google Play, and needs Android 7.0 or later on an ARM64 device.
2. Open the APK on your phone and allow installs from that source if prompted.
3. Tap Import image or Take photo, then tap the image or drag a rectangle to read the colour.

Limitations

Large images are reduced to at most 2,048 pixels per side before sampling. Colour names are the nearest match from 139 CSS named colours, not a calibrated colour measurement. Selections are not saved between sessions.