Something like that, maybe a bit more pink. The exact shade varies between sources, but Vader's saber is usually more washed out than a true-red ought to be.
That pic is of a std BR in an UE blade. For some reason, the effect on camera looks great, but to the naked eye all you get is a red-red blade.
From what I've seen, the variants of Vader's blade color is simply an interpretation of the traditional red Sith blade. The image has a very light core (lightish-red ergo pink) with a red corona. But I think if you are willing to pay for the ability to experiment, then RGB
W would be the best way for you to proceed.