A colour quality control server, comprising: - a web server unit; and - a service-providing unit with a calculation sub-unit; wherein the web server unit is configured to interface with a user via a webpage and/or an application program served by the web server unit, and to provide a graphical user interface, GUI, to the user by the webpage and/or the application program such that the user can provide colour measurement data, via the webpage and/or the application program, to the service-providing unit; wherein the calculation sub-unit is configured to compare the colour measurement data to colour reference data to classify the colour measurement data, and to output a result of the comparison via the GUI; wherein the service-providing unit further comprises a data measurement sub-unit configured to allow the user to access and to trigger, via the webpage and/or the application program, a colour measurement device to perform a colour measurement, said colour measurement device being a Universal Serial Bus, USB, device; and characterised in that: the colour quality control server is configured to interact with the colour measurement device with a WebUSB application programming interface, API. - a web server unit; and - a service-providing unit with a calculation sub-unit; wherein the web server unit is configured to interface with a user via a webpage and/or an application program served by the web server unit, and to provide a graphical user interface, GUI, to the user by the webpage and/or the application program such that the user can provide colour measurement data, via the webpage and/or the application program, to the service-providing unit; wherein the calculation sub-unit is configured to compare the colour measurement data to colour reference data to classify the colour measurement data, and to output a result of the comparison via the GUI; wherein the service-providing unit further comprises a data measurement sub-unit configured to allow the user to access and to trigger, via the webpage and/or the application program, a colour measurement device to perform a colour measurement, said colour measurement device being a Universal Serial Bus, USB, device; and characterised in that: the colour quality control server is configured to interact with the colour measurement device with a WebUSB application programming interface, API. wherein the web server unit is configured to interface with a user via a webpage and/or an application program served by the web server unit, and to provide a graphical user interface, GUI, to the user by the webpage and/or the application program such that the user can provide colour measurement data, via the webpage and/or the application program, to the service-providing unit; wherein the calculation sub-unit is configured to compare the colour measurement data to colour reference data to classify the colour measurement data, and to output a result of the comparison via the GUI; wherein the service-providing unit further comprises a data measurement sub-unit configured to allow the user to access and to trigger, via the webpage and/or the application program, a colour measurement device to perform a colour measurement, said colour measurement device being a Universal Serial Bus, USB, device; and characterised in that: the colour quality control server is configured to interact with the colour measurement device with a WebUSB application programming interface, API.