Blends two colors together by adding the values in each channel.

That is, rgb(10, 20, 30) + rgb(10, 10, 10) = rgb(20, 30, 40).

Play with an example in Ellie here: https://ellie-app.com/3yLdpDs9NBya1.

Blends two colors together by subtracting the second color's channel values from the first color's channel values.

That is, rgb(10, 20, 30) - rgb(10, 10, 10) = rgb(0, 10, 20).

Play with an example in Ellie here: https://ellie-app.com/3yLftQKkL6Ga1.

Blend two colors together.

Any color multiplied by black will result in black. Any color multiplied by white will result in the color. rgb(255, 0, 0) will keep reds and remove any greens and blues.

Play with an example in Ellie here: https://ellie-app.com/3yLgG6JQCgHa1.

Blend two colors together.

Use this function to strip out tones & change them to white.

Play with an example in Ellie here: https://ellie-app.com/3yLhRLkJPwTa1