Using rmagick to colorize an image like in photoshop

So I have this base image:

And in photoshop I do a basic layer color overlay, with the rgb colors:

r: 244, g: 93, b: 0

This gives me the amazingly vibrant:

What I'm trying to do is colorize the same image in rmagick, so if I do the following colorize:

  img = Magick::Image.read('brush.png').first
  img = img.colorize(100, 100, 100, Magick::Pixel.new(244, 93, 0, 1))
  img.format = 'png'
  img.to_blob

It gives me this really washed out orange image:

My questions is, how do I colorize this image with those rgb params in imagemagick / rmagick, to get the same vibrant color that I got in photoshop.

Thanks.