Wash. Admin. Code § 434-04-017
(2) The size of the seal to be used shall be in proportion to the size of the flag as follows:
| Flag | Size Diameter of State Seal: |
| 3' x 5' | 19" |
| 4' x 6' | 25" |
| 5' x 8' | 31" |
In all the other instances, the ratio of the seal diameter to the length of the flag shall be 1:3; and the ratio of the flag height to flag width shall be 1:1.6;
(3) The following color references for textiles are by cable number in the Standard Color Reference of America, Tenth Edition of The Color Association of the United States, Inc., New York, New York
| Flag Color | Cable Color (Textile) | Pantone Color (Process CMYK Printing) |
| Flag Background | Irish Green 80210 | PMS DS-268-1 |
| State Seal Background | Oriental Blue 80176 | PMS DS-226-3 |
| State Seal (portrait, lettering, outer and inner rings) | Black | PMS Process Black |
| State Seal Gold | Spanish Yellow 80068 | PMS DS-5-4 |
| Fringe (if any) Gold | Spanish Yellow 80068 | PMS DS-5-4 |
| George Washington's Face | Eggshell 80004 | PMS DS-5-9 |
[Statutory Authority: RCW 43.04.040 and 34.05.350. WSR 05-15-018, § 434-04-017, filed 7/7/05, effective 8/7/05. Statutory Authority: RCW 43.04.040(4). WSR 89-20-031, § 434-04-017, filed 9/29/89, effective 10/30/89.]