Copernicus, Harriet, Interstate with Nimbus Sans in action on heckhouse.com

Under the hood

.header-1 { font-family: 'Copernicus Heavy', serif; font-size: 125px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 137px; text-transform: none; color: #33384A; }
.content-1 { font-family: 'Harriet Text Light', serif; font-size: 24px; font-style: italic; font-weight: normal; letter-spacing: normal; line-height: 36px; text-transform: none; color: #838691; }
.content-2 { font-family: Interstate, sans-serif; font-size: 24px; font-style: normal; font-weight: 600; letter-spacing: normal; line-height: 33px; text-transform: none; color: #FC5253; }
.content-3 { font-family: Interstate, sans-serif; font-size: 16px; font-style: normal; font-weight: 600; letter-spacing: 2px; line-height: 16px; text-transform: none; color: #A0D8F2; }
.content-4 { font-family: nimbus-sans, sans-serif; font-size: 18px; font-style: normal; font-weight: normal; letter-spacing: normal; line-height: 30px; text-transform: none; color: #A9AEB2; }

Harriet is available from Webtype.