I've seen another '36-61 painted this (non-turquoise) blue, but I don't know if it's a factory color.
Sharp car, but someone could've done better with the interior.
I've never seen one with blue upholstery, the rear seat looks like a center armrest might have been upholstered over (as is sometimes done with mid-30's Centurys), and the dash/garnishes should be a dark gray woodgrain.
And then there's the zip tie on the glovebox door...
If everything's correct and it runs well, $23K might be an OK starting point, but as is, maybe $15K?