Hello,
Please open templates/sj_company/css/template-green.css file, find:
#yt_spotlight .row-fluid #position-a {
background-color: #488a8e;
background-image: -moz-linear-gradient(top,#6da5a8,#106267);
background-image: -webkit-gradient(linear,0 0,0 100%,from(#6da5a8),to(#106267));
background-image: -webkit-linear-gradient(top,#6da5a8,#106267);
background-image: -o-linear-gradient(top,#6da5a8,#106267);
background-image: linear-gradient(to bottom,#6da5a8,#106267);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff6da5a8', endColorstr='#ff106267', GradientType=0);
}
#yt_spotlight .row-fluid #position-b {
background-color: #7ba043;
background-image: -moz-linear-gradient(top,#9bb770,#4c7e00);
background-image: -webkit-gradient(linear,0 0,0 100%,from(#9bb770),to(#4c7e00));
background-image: -webkit-linear-gradient(top,#9bb770,#4c7e00);
background-image: -o-linear-gradient(top,#9bb770,#4c7e00);
background-image: linear-gradient(to bottom,#9bb770,#4c7e00);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff9bb770', endColorstr='#ff4c7e00', GradientType=0);
}
#yt_spotlight .row-fluid #position-c {
background-color: #89b990;
background-image: -moz-linear-gradient(top,#9fc6a4,#69a572);
background-image: -webkit-gradient(linear,0 0,0 100%,from(#9fc6a4),to(#69a572));
background-image: -webkit-linear-gradient(top,#9fc6a4,#69a572);
background-image: -o-linear-gradient(top,#9fc6a4,#69a572);
background-image: linear-gradient(to bottom,#9fc6a4,#69a572);
background-repeat: repeat-x;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff9fc6a4', endColorstr='#ff69a572', GradientType=0);
}
here you can change background color to your idea