(Image removed from quote.)
We had it first 
The modern Dutch flag (Netherlands) is a variation of the Prince’s Flag used by William Prince of Orange in the Dutch Revolt against King Philip II of Spain during the late 16th century. This tricolor flag was originally orange, white, and blue.
Eventually, the top orange strip was changed to red sometime after 1630. According to the CIA World Factbook, the color change may have been due to the orange dye fading to red over time. Additionally, the CIA Factbook considers the Dutch flag to be the oldest tricolor in continuous use. This claim is helped by the fact that most of the earliest flags only used two colors.
We also have the oldest Anthem 
I wouldn't like to throw shade at the CIAs historically spotless intelligence gathering caspabilities, but how does orange 'fade' to red exactly?
I think it has to do with the way they used to make dyes back in those days.
The other explanation makes more sense though.
Which is that the Red/White/Blue flag was derived from the flag of the count of Holland used around by count William V around ~1400 and taken up by the rebels (Geuzen) in the rebelliion against Spain and Duke Alva during the 80 year war.
It was very recently discovered that a tailor had ordered the creation of such a colored mantle for the count in 1409/1410.
However, as William of Orange became an important leader of the resistance they replaced it with Orange to honor him thus creating the so called 'Flag of Princes'.
The flag has had a rather interesting history if you're into that sort of thing.
When the country found itself without a Stadtholder (because the less popular William II of Orange died while his heir had only just been born) the 7 provinces or republics decided to reform into a federal state of 7 Republics.
They adopted the 'States flag' which was the Red/White/Blue. Even though later on the leaders and so called "Statists" were lynched by the "Orangists" and William III was named Stadtholder.
Thus restoring the rule of the house of Orange and ending the era of the 7 Republics. The 'States flag' remained the official flag though but historians believe this was done as a cost saving measure as changing all the flags on the ships and throughout the Dutch settlements would've been very costly and difficult.
It is believed that at this time the custom to fly an additional orange banner was introduced also.
During the time the French had conquered most of Europe the colors of the Red/White/Blue were adapted to match the colors of the French flag but the overall design remained the same.
It is believed that it was never restored to its original lighter color scheme thus this heralded in the era when the colors of the flag were often different depending on where it was used.
There was no official consistent color scheme.
Before WW2 began the Dutch National Socialists adopted the Orange/White/Blue flag as a symbol of resistance against the monarchy and Republic (R/W/B).
The Germans allowed the R/W/B flag to be used sparingly (probably because of its origins) and also allowed the Orange/White/Blue version to be used but not the Orange banner (as that was a symbol of the disposed monarchy)
The Japanese banned it outright throughout the Dutch colonies they conquered. Later during WW2 it became a symbol of resistance and freedom and also the flag of the Dutch government in exile.
After WW2 the Dutch government restored the flag and because there had been so many home made variants decided on an official color scheme of specific tones of red, white and blue.
Recently the 'Flag of Princes' has shown up again as a symbol for conservative nationalist groups who believe it is the true national flag that calls back to the Golden Age when the Dutch controlled the seas and commerce.
They don't want the R/W/B replaced but simply to give the other Orange variant the same status. Because of its history with national socialism there isn't a lot of support to restore this flag.
However, there are calls to increase the use of the R/W/B flag. Such as restoring it to parliament(which happened a few years ago) and easing the rules of when and how the flag may be used.
