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Hex.Saturation

Extracts the saturation component from a hex color

EvaluationContext.Colour.Hex.Saturation( hexColor )
Parameter Type Required Description
hexColor STRING The hex color to evaluate (e.g., "#01B8AA")

DOUBLE Saturation value (0-1)

EvaluationContext.Colour.Hex.Saturation("#5E81AC") // Returns 0.32

function 'EvaluationContext.Colour.Hex.Saturation' =
        (
            hexColor: STRING
        ) =>

            VAR CleanHex = IF( LEFT( hexColor , 1) = "#", MID( hexColor, 2, 6), MID( hexColor, 1, 6 ) )
            VAR R = EvaluationContext.Colour.Hex.ToInt( MID( CleanHex, 1, 2 ) )
            VAR G = EvaluationContext.Colour.Hex.ToInt( MID( CleanHex, 3, 2 ) )
            VAR B = EvaluationContext.Colour.Hex.ToInt( MID( CleanHex, 5, 2 ) )

            VAR Mx = MAX( MAX( R, G ), B)
            VAR Mn = MIN( MIN( R, G ), B)
            VAR Delta = Mx - Mn

            VAR L = ( Mx + Mn ) / 2
            VAR S =
                SWITCH(
                    true,
                    Delta = 0, 0,
                    L <= 127.5, Delta / (Mx + Mn),
                    L > 127.5, Delta / (510 - Mx - Mn)
                )

            RETURN S