California Code, Government Code - GOV § 424

The official colors of the State are blue and gold.  The specifications, references, and designations for the official colors are as follows:

Specifications:  National Institute of Standards and Technology, Research Paper RP 1700.

International Commission on Illumination:

 Blue:  Y 0.063 x 0.204 y 0.165

 Gold:  Y 0.449 x 0.474 y 0.458

Munsell Renotation:

 Blue:  H V/C 7.3 PB 2.9/8.8

 Gold:  H V/C 2.0 Y 7.1/11.3

Munsell Book Notation:

 Blue:  H V/C 7.2 PB 2.9/9.1

 Gold:  H V/C 1 Y 7.3/11

References:  Textile Color Card Association of New York, Inc.

 Blue:  Yale Blue, cable number 70086, Standard Color Card of America, 9th edition.

 Gold:  Golden Yellow, cable number 65001, United States Army Card of Official Colors for Arms and Services.

Designations:  Inter-Society Color Council-National Bureau of Standards:

 Yale Blue:  Deep purplish blue.

 Golden Yellow:  Vivid yellow.