NY formulated on Friday :
The problem is matching the colour: LED lights are daylight coloured and
tungsten lights look horribly dingy alongside them.

Not true, LED's come in a range of colour temperatures now. The E27 R80
ones I bought for the kitchen were offered as warm white or white. I
got the white ones, so as to match the existing concealed 6 foot tube's
colour.

In the rest of the house, I have used warm white and all dimable.