Colouring over bleach

[Tonie]

Hi yesterday I done a full head of blonde highlights but done them too close together so she wants some lowlights to put through I know to use colour touch instead of koleston as the hair is very porous I am just wondering do I have to use a base shade like you do when you mix koleston
Thanks

 

[Tonie]

From this

 

[Tonie]

To this

 

[ronray]

To this

No, yiu need something with a bit of tone in to, otherwise it will be flat and look green. 8/71 +7/7 wouod be nice with 1.9%

 

[Tonie]

Do you not think 8/73 instead of 71?

 

[ronray]

Do you not think 8/73 instead of 71?

Yeah you could do that, that would be fine, that's a liitle warmer obviously.