It's not possible to say what the exact tax bill will be without knowing your complete financial and tax situation. And there are many issues you need to think through first BEFORE you go this route.
First off, if you are still working for the sponsoring employer you'll have to quit your job to get the funds. You cannot take an in-service distribution from a 401(k) to pay off credit card debt.
Next, if you do quit your job (or this is from a former job) the fund administrator will withhold 20% for Federal income tax and 8% for CA income tax. There is no way around that. That's $18,760 which leaves you with a net distribution of $48,240 or about $6,760 shy of your CC debt. Maybe that seems OK, but it gets worse.
For sake of argument let's assume your tax bracket is 25% and you're under age 59 1/2. You'll also be hit with a 10% penalty tax. That brings your total tax liability for the payout to 43% (25% FIT, 10% penalty & 8% CA IT) or $28,810. But wait! Only $18,760 was withheld from the distribution. This will leave you about $10,000 short when you file your tax returns next year. What are you going to do, put that on your credit cards?
In the end you will have thrown away $67,000 of your retirement money to pay off about $39,000 of your debt and you'll STILL be at least $16,000 in debt.
Since you have that much in retirement funds at your age, you're obviously making significant contributions to your plan. I'd suggest that you leave the retirement money alone and temporarily stop contributing to the plan. Use those funds to pay down the CC debt. Cut other expenses to the bone if needed and slash and burn on the debt until it's cleared. Go through one of the debt conselling services and see if you can get the interest rates cut or dropped entirely. You probably have enough cash flow to clear this mess in 2 or 3 years and in the meantime your retirement funds will have continued to grow.
Dumping the retirement fund now -- especially as it's not large enough to clear all of your debt and pay all of the taxes -- will leave you wishing you hadn't in 40 years when you retire. The future value of that $67,000 could easily exceed $1,000,000 or more depending upon how your investments perform over 40 years.
At least now you're armed with the basic information that you'll need to make a (hopefully) intelligent decision.