some color not be rendered why this happen?

[OriLiMu]

As the image shows the white

Why the blue and "#dddddd" behind the color not colored?

[ap]

The blue isn’t coloured because it’s not inside a rule block. That is correct behaviour – this plugin is syntax-sensitive and doesn’t highlight random pieces of the file.

However, the #dddddd value for the color property should be painted. That really is a bug.

Note that a fix isn’t likely, since this version of the plugin is unmaintained. Since I cannot reproduce the problem in my own fork, you can try switching to get a fix.

[albfan]

Working here too:

[albfan]

opps I test from https://github.com/ap/vim-css-color/ as @ap said