Colors in vvvv are represented by 4 color components in a range 0..1:

• R for Red
• G for Green
• B for Blue
• A for Alpha (defines transparency)

There is also another way to represent a color in RGB space, which is typically more intuitive to adjust:

• HSL (Hue, Saturation, Lightness)
• HSV (Hue, Saturation, Value) aka HSB.

The IOBox (Color) uses the HSV representation by default, see Color IOBoxes.

Note, other software packages can specify individual components in another ranges:

• RGB: 0..255 for the Color channels and 0..100% for the Alpha
• HSL: 0..360° for the Hue and 0..100% for the Saturation and Lightness.

Don't forget to convert the values to the 0..1 range.
There are convenient RGB (Color Join Picker), HSV (Color Join Picker)and AsColor (String Hex) for helping. Or just type the expression like 270/360 into the IOBox to convert 207° of Hue into 0..1 range.

When you need to save / load a color to a file or send / receive it over the network it has to be represented as a String or Raw data.

Colors in vvvv can be compared, transformed and interpolated.

See also:

• 3D LUT Color Grading by eno
• Related Contributions

These nodes are little helpers to convert between HSL and HSV spaces.

See also:

• ColourLovers API by geometrica
• Related Contributions

External sites providing further info on color, color spaces and color management.