Ask a person
Both of these reach someone who can actually do something about it. Written enquiries are answered within one working day.
Direct
- Telephone
- +44 7357749738
There is no chat widget and no ticket number. You write, a person reads it, a person replies.
Most questions are one of these
Billing, refunds and cancelling
Cancel from your billing page at any time in two clicks. If a charge looks wrong, write to us — we would rather fix it than have you dispute it.
Read the pageSomething on the site does not work
Tell us what happened in your own words. You do not have to diagnose it. Include your browser if you know it.
Read the pageWhat the service will and will not tell you
It gives measured values for pairs of colours. It issues no compliance verdict, no score and no replacement colours, and it says nothing about anyone's vision.
Read the pageYour personal data
Ask what we hold, get a copy, have it corrected or deleted. We reply within a month and usually much sooner.
Read the page

Or write here
This goes to the same inbox as the address above. Only put in what you need to — there is no reason to include anything personal beyond a way to reply to you.
Company details, including the registered company name and number, are on the legal information page. If you are unhappy with how we have handled something, say so in the same message and it will be treated as a complaint rather than a query.