It is worth noting that people of the time did not seem to worry about realistic colours, and you will find blue goats, red horses and so on throughout the Bayeux tapestry. Neither did they worry if they ran out of a colour half way through a motif, they just used another shade and carried on.
<gallery mode="packed" heights=200px>[[File:embroid2.gif|thumb|left|Figure 2: First couching stitch]] [[File:embroid3.gif|thumb|right|Figure 3: Second couching stitch]]</gallery>