Too early to need nutes, so if that's yellow in real life, and not just the photos online, it may need a little less light... if the leaves are getting paler each day, that's a definite.
The seed and soil should have plenty of nutes for the first couple weeks in most contexts...
Otherwise, looks perfectly normal.. could easily be off on color simply due to photograph and perfect in real life.. Think it's just the sun illuminating them more than i am used to seeing with indoor pictures.