Back in the early days you could buy any colour of riding gear as long as it was black. The trouble with black or black and grey is that you can’t be seen. Some riders did venture into blue, red, green and yellow gear, but mostly to match their favourite bike.
Now we have High Visibility gear and reflective striping and piping. It helps to dress to be seen. Do all that you can do to be seen by other motorists. The higher you wear High Visibility gear on your body the more visible you will be.