The opacity .33 is necessary to make the down arrow also lighter IIRC, but I'll double check.

@michaelpg: I think that I tried to replicate exactly the disabled look of the paper-dropdown-menu at https://codereview.chromium.org/2406993002. See attachments comparing the two (they look the same level of gray to me).

Are you saying that md-select does not match paper-dropdown-menu, or that regardless if it matches or not, it should be tweaked?

Deleted: md_select_disabled.png 895 bytes

	md_select_disabled.png 895 bytes View Download

Deleted: paper_disabled.png 1.8 KB

	paper_disabled.png 1.8 KB View Download

Ping @michaelpg, see comment #2.

Regardless of whether it matches, I suspect it fails our contrast ratio a11y requirements.

I also recall doing a comparison at the time and finding the md-select to be lighter than the old settings-dropdown-menu. I can't do that now without going back to an earlier build, but dropping in a <paper-dropdown-menu> in inspector shows it to be darker than the md-select (may or may not be a valid test).

Deleted: select.png 13.7 KB

	select.png 13.7 KB View Download

>Regardless of whether it matches, I suspect it fails our contrast ratio a11y requirements.

Can we get UX or a11y opinion on this before changing it?

lpalmaro: Do we need to worry about contrast ratio for disabled controls?

Some context found in issue 603620#1:

> All text on all pages must meet an absolute min contrast level of 4.5:1

But WCAG 2.0 actually says that "incidental" text ("part of an inactive user interface component") has no contrast requirement. Still, the effective contrast here if the values in my original description are correct is 1.54:1 which is really low.

http://webaim.org/resources/contrastchecker/?fcolor=d0d0d0&bcolor=ffffff

Any update? How can we help to ensure that these accessibility items are fixed for md-settings?

Thanks!

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ff04fe72fb9f627f2aae234a7893f88f2debbf71

commit ff04fe72fb9f627f2aae234a7893f88f2debbf71
Author: scottchen <scottchen@chromium.org>
Date: Thu Mar 16 19:43:45 2017

MD Settings: change disabled select visuals.

The visual we had for disabled md-select was too light for a11y standards; this CL gives it the same visuals as other disabled elements in md-settings.

BUG= 657647 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2753983002
Cr-Commit-Position: refs/heads/master@{#457522}

[modify] https://crrev.com/ff04fe72fb9f627f2aae234a7893f88f2debbf71/ui/webui/resources/html/md_select_css.html