Hex.AdjustAlpha

Adjusts the alpha component of a hex color

SyntaxExamplesDefinition

EvaluationContext.Colour.Hex.AdjustAlpha( hexColor, alphaChange )

Parameter	Type	Required	Description
hexColor	STRING		The hex color to adjust (e.g., "#01B8AA")
alphaChange	DOUBLE		The alpha adjustment (-1 to 1)

STRING Modified hex color

EvaluationContext.Colour.Hex.AdjustAlpha("#5E81AC", -2.0) // Returns "#5E81AC66"

function 'EvaluationContext.Colour.Hex.AdjustAlpha' =
        (
            hexColor: STRING,
            alphaChange: DOUBLE
        ) =>

            VAR CleanHex = IF( LEFT( hexColor, 1) = "#", MID( hexColor, 2, 6), MID( hexColor, 1, 6 ) )
            VAR A = EvaluationContext.Colour.Hex.Alpha( hexColor )

            VAR NewA = EvaluationContext.Colour.Int.ToHex( MIN( MAX( A + alphaChange, 0 ), 1 ) * 255, 2 )

            VAR result = "#" & CleanHex & NewA

            RETURN result