Fireworks display faded colors differently

What I expected to happen was...:
Orange to be more visible.

What actually happened was...:
There was only a slight hint of orange.

Steps to reproduce:
1. Put down a command block with this command:

pre 1.11:

/summon FireworksRocketEntity ~0 ~1 ~0 {LifeTime:10,FireworksItem:{id:fireworks,Count:1,tag:{Fireworks:{Explosions:[{Type:0,Flicker:1,Trail:1,Colors:[8912683],FadeColors:[15925056]}]}}}}

1.11+:

/summon fireworks_rocket ~0 ~1 ~0 {LifeTime:10,FireworksItem:{id:fireworks,Count:1,tag:{Fireworks:{Explosions:[{Type:0,Flicker:1,Trail:1,Colors:[8912683],FadeColors:[15925056]}]}}}}

2. Activate the command block in 15w32c and higher and notice how little orange there is.
3. Activate the command block in 1.8.8 and notice that there is more orange than in 15w32c.

Note:

• The last picture doesn't show orange at all, but there is a bit of it at the end of the explosion.