Send formatted HTML body in mailto function in Email in ASP.Net

dear friends,

how to set color to text in outlook mail body text while redirecting from html to outlook?

i tried below list but it just printing

<font color='#ff8000'>find the sample text</font> <p color='green'>find the sample text</p>

var body = "Dear Team,<br><br>We have received mail <font color='#ff8000'> find the sample text </font><br>Thank you";
window.location = 'mailto:' + email.Mailto + '?subject=Registration '&body=' + body.replace(/<br\s*\/?>/mg, "%0D%0A") + email.CC;