Privacy Policy for Colour Dog

This privacy policy governs your use of the software application Colour Dog that was created by Adrian Nier. You can find the privacy policy for this website here.

About Colour Dog

Colour Dog is a utility for macOS to help people, including but not limited to those with colour blindness, to easily identify a colour they see on their screen by pressing one of the modifier keys on their keyboard (“Activation Key”). When Colour Dog is activated a window (“Magnifier”) appears with an enlarged image of the current area around the mouse pointer and the name of the closest Web Standard Colour matching the colour in the center of this picture. In addition, professional users can customise Colour Dog to also display RGB, HSB, or HSL colour values and easily copy these values to the clipboard (“Clipboard Feature”).

What information does Colour Dog regularly obtain and how is it used?

Colour Dog works by observing the following system events generated by user input:

Data for these events are used to:

If the Activation Key is pressed, a small portion (16 by 16 pixels) of the screen around the current position of the mouse pointer is stored in the computer’s short term memory and discarded after being used to:

The colour information is used to store a history of the ten most recently measured colours in the computer’s long term memory (“Disk”) so it can be restored across restarts. This history can be cleared at any time by the user.

Additionally, if the Clipboard Feature is triggered, the colour information is copied to the user’s clipboard and stored in a history of the ten most recently copied colours on Disk. Again, this history can be cleared by the user.

Colour Dog supports a range of user customisable options (“preferences”) which can be changed through its graphical user interface. These preferences are stored on Disk and include:

Is there any other information obtained?

Upon first launch Colour Dog displays a helpful window to welcome new users. When a user completes this introduction the fact is stored on Disk to avoid showing the welcome window again. For an accurate depiction of the current keyboard in the welcome window, the following data is gathered:

To translate the user interface the current list of languages set in macOS is processed.

Is any of the gathered information transmitted over the network?

Colour Dog itself does not transmit any information over the network.

Do third parties see and/or have access to information obtained by Colour Dog?

When the user invokes Colour Dog’s online documentation from the Help menu a web address is visited in the currently selected standard browser (e.g. Safari). The following data is sent as part of this address to show relevant information:

When accessing this online documentation the servers and network devices of Adrian Nier’s web hosting partner collect the following data:

This data is not merged with other data sources by Adrian Nier.

The collection of this data is based on Art. 6 (1) lit. b GDPR. Adrian Nier’s web hosting partner has a legitimate interest in the technically error-free presentation and optimisation of Adrian Nier’s website - for this purpose the server log files must be recorded.


Adrian Nier is concerned about safeguarding the confidentiality of your information. Physical, electronic, and procedural safeguards are provided to protect information that is processed and maintained. For example, access is limited to this information to authorised employees and contractors who need to know that information in order to operate, develop or improve Colour Dog. Please be aware that, although Adrian Nier endeavors to provide reasonable security for information that is processed and maintained, no security system can prevent all potential security breaches.


This Privacy Policy may be updated from time to time for any reason. Adrian Nier will notify you of any changes to my Privacy Policy by posting the new Privacy Policy here. You are advised to consult this Privacy Policy regularly for any changes, as continued use is deemed approval of all changes.

Your Consent

By using Colour Dog, you are consenting to the processing of your information as set forth in this Privacy Policy now and as amended by Adrian Nier. “Processing”, means using or touching information in any way, including, but not limited to, collecting, storing, deleting, using, combining and disclosing information, all of which activities will take place in Germany. If you reside outside Germany your information will be transferred, processed and stored there under privacy standards of the Federal Republic of Germany.


If you have any questions regarding privacy while using Colour Dog, or have questions about Adrian Nier’s practices, please reach out via email at privacy at adriannier dot de.