Doug Johnson Productions

Scope guide · Color & matching

Chromaticity (CIE xy)

Map source colors against reference outlines and connect vivid lighting or graphics to their color-coordinate distribution.

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Learn & Reference / Scope library / Chromaticity (CIE xy)

Where do these colors fall relative to the intended gamut?

Add this view from Add scope > Chromaticity (CIE xy), then choose the input you want to inspect. Use the pane's i button for its in-app reading guide.

Read this example.

Fresh arena-pop LED scene: CIE xy at lower right, with Channel vs Channel above and balance plots at left.
Fresh arena-pop LED scene: CIE xy at lower right, with Channel vs Channel above and balance plots at left. Click the image for a larger view.
  1. The trace shows sample positions in xy coordinates. Green and violet stage colors contribute distinct extensions in this example.
  2. The reference triangle describes selected color-space primaries.
  3. Use a region to separate a stage light or graphic from the rest of the picture.

Try it yourself.

  1. Choose the concert scene in Picture and Chromaticity.
  2. Follow metadata or select Rec.709, P3 or Rec.2020 as appropriate.
  3. Compare a saturated region with the full frame.

Useful controls.

  • Gamut/reference choices define the comparison outline.
  • Trace settings adjust visibility.
  • Source interpretation follows available color metadata.

Missing metadata defaults to Rec.709. Confirm the source interpretation when evaluating its distribution.