+ Added: On double-click HTML color's # is included making it easy to copy color (works also in CSS)
It doesn't work if the colours are within a comment. I often keep a list of colours used within a CSS in comments at the top of the document, e.g.
/*
Colours
#00aeef St Andrews Light Blue 100%
#99dff9 St Andrews Light Blue 40%
#ffffff White
#000000 Black
*/
It makes it easier for me to remember what the colours are, and if I need to use one again I can just copy and paste. At least I used to be able to. Now, when I copy from the commented color declaration I get '99dff9' copied, if I then double-click to select an existing color declaration value it will select the # too, I then paste in the new value and it doesn't have a hash #.
For me the old behaviour was much better, at least it was consistent.
Gareth