As for the 1985/986 Haro blue... there isn't an RAL code that gives an exact match.
When I had my 1986 Haro restored, I had it colured matched against an original blue Haro. For that reason I had to have it painted rather than powder coated.
Here's the paint that was used.
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Comparison of the painted part with an OG cap.
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And restored:
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