We're pretty high income (~200k) so maxing our 401ks, HSAs, and IRAs is around that 50-55k mark (I didn't add in the company match). So that's 20-29% for us =(.
That being said we haven't been adding to taxable investments because we've been doing ~$5,400 a month toward our house downpayment, once we close on our home the mortgage will be much lower than $5,400 per month, and I'll split the residual leftover between prepayments on the mortgage (3.9%, not mathematically ideal but makes my wife sleep better) and taxable investments (my preference).
It's all about compromise, so that'll bump us up in the % of investment in the stock market.