a puzzle for Warhammer: End Times - Vermintide Solution posted.

This time it's a puzzle for beginners, for the people new to steamgifts, or for the veterans teaching them the site rules

https://www.dropbox.com/s/28gfb4m9v1hf1ag/puzzle.png

edit:
It has been pointed out to me that I made a mistake.
The third color should be this shade: https://www.colorcodehex.com/198801/
My apologizes to anyone that had problems because of this,

Solutions:

hidden hints:

• If you looked at the comments on the drop box you would see the phrase "Book cypher"

• the line "This time it's a puzzle for beginners, for the people new to steamgifts, or for the veterans teaching them the site rules" was hinting at the key the the puzzle. the steamgifts FAQ
  I& f you downloaded the image, renamed it to .zip and extracted you found a text file that said:

  https://www.steamgifts.com/about/faq
  rule - word - letter

• the line "This time it's a puzzle for beginners, for the people new to steamgifts, or for the veterans teaching them the site rules" was hinting at the key the the puzzle. the steamgifts FAQ

• the RBG values for the five colors in the image are:

  16 65 1
  6 18 5
  25 136
  10 23 4
  20 16 1

Solution:

16 65 1

The sixteenth rule(question rather as one of my solvers pointed out later) in the FAQ is

I think I spotted a fake giveaway, what should I do?

We typically allow all giveaways to run their course without judgement, and allow the giveaway creator a fair chance to prove themselves and to come through with the gift in the end. An exception is when the giveaway creator enters a description that clearly states the giveaway is fake, or if the description illustrates a lack of understanding of how the giveaway system works. Please refrain from posting any comments accusing the giveaway creator of posting a fake giveaway, and only create a support ticket if the giveaway is fake beyond a reasonable doubt.

The sixty-fifth word in the rule is "Please"

The first letter of "Please is "P" which is the first letter of the URL

Repeat these steps for the pother four colors.