The Seahawks may be 0-1 in green, but the Sounders are unbeaten (1-0-1) when wearing their blue kit.
And Sounders FC will be in blue again Saturday in Columbus, where the Crew's bright yellow might have created a visual health hazard when paired against rave green.
The Sounders made their blue debut Aug. 15 and beat LA, 2-0. Then they wore it again in their 1-1 draw Aug. 23 in Houston for a 1-1 draw.
The team had worn all green in its first 10 road matches.