Updated in 2015, the standard Google logo does not feature which of these colors?

The 2015 Google logo does not use the color yellow.

The Google logo appears in numerous settings to identify the search engine company. Google has used several logos over its history, with the first logo created by Sergey Brin using GIMP (graphics editor). A revised logo debuted on September 1, 2015. The previous logo, with slight modifications between 1999 and 2013, was designed by Ruth Kedar, with a wordmark based on the Catull, an old style serif typeface designed by Gustav Jaeger for the Berthold Type Foundry in 1982

On September 1, 2015, Google introduced a controversial "new logo and identity family" designed to work across multiple devices. The notable difference in the logo is the change in the typeface. The colors remained the same (blue, red, orange and green), however, Google switched to a modern, geometric sans-serif typeface called Product Sans, created in-house at Google (and also used for the Alphabet logo).