Legended[Graphics[{{}, {Hue[0.67, 0.6, 0.6], Directive[PointSize[0.019444444444444445], RGBColor[0.368417, 0.506779, 0.709798], AbsoluteThickness[1.6]], Point[{{0., 0.}}]}, {}},
  {DisplayFunction -> Identity, PlotRangePadding -> {{Scaled[0.02], Scaled[0.02]}, {Scaled[0.05], Scaled[0.05]}}, AxesOrigin -> {0, 0}, PlotRange -> {{-1., 1.}, {-1., 1.}},
   DisplayFunction -> Identity, AspectRatio -> GoldenRatio^(-1), Axes -> {True, True}, AxesLabel -> {None, None}, AxesOrigin -> {0, 0}, DisplayFunction :> Identity,
   Frame -> {{False, False}, {False, False}}, FrameLabel -> {{None, None}, {None, None}}, FrameTicks -> {{Automatic, Automatic}, {Automatic, Automatic}}, GridLines -> {None, None},
   GridLinesStyle -> Directive[GrayLevel[0.5, 0.4]], Method -> {}, PlotRange -> {{-1., 1.}, {-1., 1.}}, PlotRangeClipping -> True,
   PlotRangePadding -> {{Scaled[0.02], Scaled[0.02]}, {Scaled[0.05], Scaled[0.05]}}, Ticks -> {Automatic, Automatic}}],
 Placed[SwatchLegend[{RGBColor[1, 0, 0], RGBColor[0, 0, 1]}, {"a", "b"}, LabelStyle -> {}, LegendLayout -> "Column"], After, Identity]]