Hi,

Sorry, can't change text-shadow follow main color.

You can add css code in: 

http://www.awesomescreenshot.com/image/868495/cf4c1c5da08b7ecc7e3fc520f49d1229

.pricing-table .price span {
    text-shadow: 1px 1px #a65c58, 2px 2px #a65c58, 3px 3px #a65c58, 4px 4px #a65c58, 5px 5px #a65c58, 6px 6px #a65c58, 7px 7px #a65c58, 8px 8px #a65c58, 9px 9px #a65c58, 10px 10px #a65c58, 11px 11px #a65c58, 12px 12px #a65c58, 13px 13px #a75c58, 14px 14px #a85d59, 15px 15px #a95d59, 16px 16px #aa5e5a, 17px 17px #ab5e5a, 18px 18px #ac5f5b, 19px 19px #ad5f5b, 20px 20px #ae605c, 21px 21px #af615d, 22px 22px #b0615d, 23px 23px #b1625e, 24px 24px #b2625e, 25px 25px #b3635f, 26px 26px #b4635f, 27px 27px #b56460, 28px 28px #b66460, 29px 29px #b76561, 30px 30px #b86662;
}