di fferenttonesofthesamecolour

usi ngonlytwocolours 100% ononesi de 100% ontheothersi de 50/50i nthemi ddle andvaryi ngonei thersi de

usi ngonlyfourcolours 100% i nonerow 50/50 onthenextrow 100% i nonerow 50/50 onthenextrow

someexamples