Material - combine floats into a color node

Hello, I am using the “particle random value” in the hopes of randomizing the color of GPU particles. It returns a float, so I use 3 of them, one for each color channel. But how can I now combine these into a vector parameter to plug into the material input color?

I bet its real easy but there are so many nodes and I have not found anything in the docs.
Thanks.

For those like me coming to this question years after it was posted, I found a way to combine floats into a color vector using the “Append vector” node. If I only have one float I used 2 Append Vector nodes. (UE4.19)

Found a slightly better node, “AppendMany”
Input is RGBA seperated and output is RG, RGB, RGBA.

276602-make-color.png

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