Cryptocurrencies are new, and tech based. It is hard to older people to grab it. We aim to bring both older (with more spare money) as well as youger (less money, more inclined to invest in something new related to the technology revolution they are part of).
Also, VERY IMPORTANT, cryptocurrencies are based on blockchain technology. I suggest u google it before start designing. it is secure, but its main charachteristic is descentralization! It almost anaquism, as it empower people against central authorities (banks, governments, intermediaries, even facebook).
Therefore, the challenge is to blend the traditional, sophisticated, old fashion style of wall street with modern, revolutionary, technological, youth style of cryptocurrencies. It need to project solidness, trustworthy, knowledge, excellence, detail oriented AND not boring, transparent, engaged, ethical, tech savvy., early adopter.
Please, don´t be cheesy. The typography must send a sense of exclusiveness, not a ordinary times new roman kind. If you use a proprietary font there is no problem, quite the opposite.
Finally, even first try should have at least application over black and white backgrounds (paper and website).
Below are some competitors websites.