For me, it's more about being visible on the streets. I have a blue and (predominantly) white leather jacket. My helmet is solid yellow and coincidentally it matched one of my bikes, but the bike I currently ride is red. My gloves are also red. So I never tried to match my gear to the bike, as I bought my bikes based on other things than color scheme. But I think at night, the light colored gears increases visibility and worked to my advantage occasionally.