Fixed cut/paste errors; added new reftests for lab

[faceless2]

Some of the tests under css-color had cut-n-paste errors;

• the lab tests were referencing the "blacktest-ref.html" instead of a correct reftest (which I created)
• the rgb hex value 008000 had incorrectly been matched to rgb(0, 80, 0) - should be 128
• several of the lch tests had been copied from lab tests, but had not had the function changed from lab->lch

[w3c-bots]

Build PASSED

Started: 2017-12-01 17:15:04
Finished: 2017-12-01 17:26:51

Failing Jobs

• MicrosoftEdge:14.14393

View more information about this build on:

• WPT PR Status
• TravisCI

[csnardi]

I only skimmed the lab/lch changes, but all of the rgb changes look good.

[dbaron]

I'm hoping @svgeesus can review this one.

[csnardi]

Assuming all of the reference styles are correct in the tests themselves, this all looks good to me.

[csnardi]

@svgeesus Would you also mind taking a look at this change? I'm working on Color 4 implementation with RGB, and I'd like to make sure these tests are passing.

[svgeesus]

These are all correct. My apologies for the sloppy original tests and also for not noticing the review mention until recently.