## CalcColorFactor

`CalcColorFactor[exp]` calculates the color factor of exp. `CalcColorFactor` is useful for application on FeynArts produced amplitudes.

### See also

[Overview](Extra/FeynCalc.md), [SUNSimplify](SUNSimplify.md).

### Examples

```mathematica
CalcColorFactor[SUNF[a, b, c] SUNF[a, b, d]]
```

$$C_A \delta ^{cd}$$