Conditional Formatting based on 2 dimensions

Your measure looks like this

Kpi 01 Color =
IF (
    AND (
        AVERAGEX (
            'Sla+Contract',
            IF (
                SUM ( 'Sla+Contract'[SLA] ) / SUM ( 'Sla+Contract'[Scope KPI 1] )
                    = BLANK (),
                "N/A",
                SUM ( 'Sla+Contract'[SLA] ) / SUM ( 'Sla+Contract'[Scope KPI 1] )
            )
        ) >= 0.95,
        MINX (
            'Sla+Contract',
            IF (
                SUM ( 'Sla+Contract'[SLA] ) / SUM ( 'Sla+Contract'[Scope KPI 1] )
                    = BLANK (),
                "N/A",
                SUM ( 'Sla+Contract'[SLA] ) / SUM ( 'Sla+Contract'[Scope KPI 1] )
            )
        ) >= 0.8
    ),
    "#009900",
    "#ff2312"
)

That is a bit complex.  Let's rewrite it.

Kpi 01 Color =
IF (
        AVERAGEX (
            'Sla+Contract',
            DIVIDE (
                SUM ( 'Sla+Contract'[SLA] ) , SUM ( 'Sla+Contract'[Scope KPI 1] )
                ,"N/A"
            )
        ) >= 0.95 &&
        MINX (
            'Sla+Contract',
            DIVIDE (
                SUM ( 'Sla+Contract'[SLA] ) , SUM ( 'Sla+Contract'[Scope KPI 1] )
                ,"N/A"
            )
        ) >= 0.8,
    "#009900",
    "#ff2312"
)

Bit better but still not good. First of all you are comparing "N/A" to a number. Then you are mixing an aggregator function MINX with a scalar function SUM.  That may or may not work (average of sums vs sum of averages pitfall).

Break the issue down into smaller parts, use lots of variables and validate that these variables return the expected intermediate results.