Hello, I have a simple material where I input a color linked to the emissive node. It works great except for green colors which doesn’t seem to glow.
Any ideas?
To make green glow try setting the G value (so second entry) over 1
Multiply the color value by a scalar parameter. Brightness will vary by color due to having different luminance values.
RGB can be converted to an 8 bit luminance value, although the formulas vary by color space. I believe for sRGB it is (L = 0.2126 * R + 0.7152 * G + 0.0722 * B).
Human vision is much more sensitive to green light, so the G values end up being protionately reduced by the weighted conversion. I guessing this may be why green tends to look less emissive. You can compensate with the multiplier until the perceived brightness is similar.
Thank you for your replies, unfortunately they didn’t solve the problem.
After a few more days of troubleshooting I finally found the solution.
When setting the color from my blueprint, I originally used a “Make Color” node instead of a “Make Linear Color” node, when switching nodes, the green emissive started working 
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As @3dRaven mentioned, increase the values beyond 1 and it will do the trick.
