Muli in action on keepachangelog.com

Under the hood

.header-1 { font-family: Muli, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 27px; font-style: normal; font-weight: 700; letter-spacing: normal; line-height: 38px; text-transform: none; color: #E05735; }
.content-1 { font-family: Muli, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; font-style: normal; font-weight: 400; letter-spacing: normal; line-height: 22px; text-transform: none; color: #342828; }