#660099),
<code>"Yellow"</code> (defined as C0 M15 Y100 K0, R255 G204 B51, HEX #FFCC33), and
<code>"Grey"</code> (defined as C0 M0 Y0 K50, R149 G149 B151, HEX #999999).</p>
<p>The purple should be used as a main colour with the grey and yellow to complement it.</p>
<p><code>uni_manchester_1</code> uses the HEX color definitions. 
#' RGB color values differ from HEX definition.
For <code>"Purple"</code> and <code>"Grey"</code> the RGB and HEX definitions differ numerically, 
yet are visually indistinguishabl