# Quickly mix two colours
**URL:** https://community.aseprite.org/t/quickly-mix-two-colours/8427
**Category:** Scripts & Extensions
**Created:** [March 14, 2021, 10:51pm UTC](https://community.aseprite.org/t/quickly-mix-two-colours/8427 "2021-03-14T22:51:37Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Olga\_Galvanova](https://community.aseprite.org/u/Olga_Galvanova)
#### Post date: [March 14, 2021, 10:51pm UTC](https://community.aseprite.org/t/quickly-mix-two-colours/8427/1 "2021-03-14T22:51:37Z")
this is a very simple script which will create 1:1 blend of selected foreground and background colours.
the best way to use it is to assign a keyboard shortcut.
useful for building palettes, blending and antialiasing.
```
-- ***QUICK MIX 0.1*** ---
-- based on aquova's hue generator
-- https://github.com/aquova/aseprite-scripts
--
-- blends foreground and background colours
local c1 = app.fgColor
local c2 = app.bgColor
local mix = {
red = (c1.red - c2.red),
green = (c1.green - c2.green),
blue = (c1.blue - c2.blue),
}
local newRed = c1.red - math.floor(mix.red * 0.5)
local newGreen = c1.green - math.floor(mix.green * 0.5)
local newBlue = c1.blue - math.floor(mix.blue * 0.5)
local c3 = Color{
r = newRed,
g = newGreen,
b = newBlue,
a = 255 --newAlpha
}
app.fgColor = c3
```
---
### Author:  [@Olga\_Galvanova](https://community.aseprite.org/u/Olga_Galvanova)
#### Post date: [July 15, 2021, 12:01pm UTC](https://community.aseprite.org/t/quickly-mix-two-colours/8427/2 "2021-07-15T12:01:02Z")
update:
now works with alpha channels.
if one of colours is fully transparent, only alpha channels get mixed.
```auto
-- ***QUICK MIX 0.2*** ---
-- b236, based on aquova's hue generator
-- https://github.com/aquova/aseprite-scripts
--
-- blends foreground and background colours
-- if one of colours is fully transparent,
-- the script will mix alpha channels only
local c1 = app.fgColor
local c2 = app.bgColor
local newRed
local newGreen
local newBlue
local newAlpha
if (c1.alpha == 0) then
local mix = {
red = c2.red,
green = c2.green,
blue = c2.blue,
alpha = (c1.alpha - c2.alpha)
}
newRed = c2.red
newGreen = c2.green
newBlue = c2.blue
newAlpha = c1.alpha - math.floor(mix.alpha * 0.5)
elseif (c2.alpha == 0) then
local mix = {
red = c1.red,
green = c1.green,
blue = c1.blue,
alpha = (c1.alpha - c2.alpha)
}
newRed = c1.red
newGreen = c1.green
newBlue = c1.blue
newAlpha = c1.alpha - math.floor(mix.alpha * 0.5)
else
local mix = {
red = (c1.red - c2.red),
green = (c1.green - c2.green),
blue = (c1.blue - c2.blue),
alpha = (c1.alpha - c2.alpha)
}
newRed = c1.red - math.floor(mix.red * 0.5)
newGreen = c1.green - math.floor(mix.green * 0.5)
newBlue = c1.blue - math.floor(mix.blue * 0.5)
newAlpha = c1.alpha - math.floor(mix.alpha * 0.5)
end
local c3 = Color{
r = newRed,
g = newGreen,
b = newBlue,
a = newAlpha
}
app.fgColor = c3
```