HELP...Need a shawl, wrap, pashmina etc,... for this dress!!!

[1million]

Off to a wedding and I need to take something incase it's cold. Shoes are light grey with crystals on the peep toe and have a grey clutch. So Im thinking either grey which could then looked a bit too drab or would love to match up with the dress - pic doesn't give true colour it's like a crimson red/pink