Open Sans in action on dropcolorpicker.com

Under the hood

.header-1 { font-family: "Open Sans", sans-serif; font-size: 36px; font-style: normal; font-weight: 600; letter-spacing: normal; line-height: 39px; text-transform: uppercase; color: #9C92FF; }
.header-2 { font-family: "Open Sans", sans-serif; font-size: 26px; font-style: normal; font-weight: 500; letter-spacing: normal; line-height: 39px; text-transform: none; color: #AFB9D0; }