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What RGB colour is the best match for Hydrogen Alpha?

What RGB colour (like a hexadecimal colour code say) is the best match for the Hydrogen Alpha wavelength? Ha is a very deep red and actually outside the sRGB gamut, so it can't be represented exactly. I'm thinking maybe a dark red, with no blue or green. Maybe someone else has tried to display it on computer before?

2 Answers

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  • 9 years ago
    Favorite Answer

    The hexadecimal colour code for Hydrogen Alpha's deep red would be 777000.

    Regular red is at FF0000.

  • 9 years ago

    Well, ..., if you're just trying to represent it pictorially, I pick a rich rust red. e.g. R:221, G:22, B:1.

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