foreground
background

SCSS Blend Modes

normal
multiply
lighten
darken
darkercolor
lightercolor
lineardodge
linearburn
difference
screen
exclusion
overlay
softlight
hardlight
colordodge
colorburn
linearlight
vividlight
pinlight
hardmix

Photoshop

colorblend
dissolve
divide
hue
luminosity
saturation
subtract