hey sorry for this tacky question
been trying to learn colour blending in the new photoshop CS6. Been following the instructional video on ctrlpaint.com. I can't seem to blend two colours to produce a third in between colour. I pick a dark blue then a light blue and hold down the alt key to use the colour picker. According to the online video when I lay the lighter blue on top of the darker blue they should mix to produce a new mid tone between the two.
However all that happens when I do it is that I make the darker blue even darker but their is no blending between the two colours as the lighter blues pigments never show over the top
any ideas what I might be doing wrong on need to do different?