Disclaimer: This is only supposed to be a demonstration of an alternative way to show the TfL Line Status "Rainbow Box", with alternative displays dependent on the mode to make it easier for colourblind people, as well as long time users, to read the box. The current design, in my opinion, is somewhat inaccessable and can be confusing for long time users due to similar colour choices. For example, the Central Line uses #dc241f, while the Windrush Line uses #bd0404, which are very similar.
No infringement on any copyright, designs, design guidelines, etc. is intended in any way. The TfL colours, line names, etc. are all owned by TfL.
This page uses CSS Flexbox display styles. You will need a new-ish browser (anything released since 2012, unless it's Internet Explorer, which needs IE11) to use this page.