Neue Haas Unica in action on missiveapp.com

Under the hood

.header-1 { font-family: NeueHaasUnicaPro, "Helvetica Neue", Arial, sans-serif; font-size: 75px; font-style: normal; font-weight: 200; letter-spacing: normal; line-height: 90px; text-transform: none; color: #222427; }
.content-1 { font-family: NeueHaasUnicaPro, "Helvetica Neue", Arial, sans-serif; font-size: 25px; font-style: normal; font-weight: 300; letter-spacing: normal; line-height: 33px; text-transform: none; }
.content-2 { font-family: NeueHaasUnicaPro, "Helvetica Neue", Arial, sans-serif; font-size: 14px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 21px; text-transform: none; }
.content-3 { font-family: NeueHaasUnicaPro, "Helvetica Neue", Arial, sans-serif; font-size: 18px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 27px; text-transform: none; }