Slight darkening on leaves

[athos]

This little fella is just over 1 week old and the leaves is slightly darkening. Should I worry? Could it be a slight Nitrogen toxicity?

 

[jingo]

The first few sets of leaves can be strange, twisted, mottled color, etc I think it may have to do with the roots hardening off on the young seedlings.

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[Habitual]

I see mine get a little blue sometimes, not sure of the reason but its not a thing to worry about . You have a very healthy looking seedling. Grow well

Hab

here is 100 Rep to get you started

 

[Waira]

..young leaves are still building chlorophyll density, so colors will deepen as they mature... she's fine mate!

 

[athos]

Thank you all, you were right, nothing to worry about