login to blog then click Layout then click edit HTML then find ith quick find or F3 and finding this/*-- (Post) --*/ after find that you find again meta then color then you change color code for this color code you can find in Layout--Fonts&colors and try color you want and will see that codes.
entrytitle h2{margin:0px; font-weight:bold; font-size:17px; padding:0px; margin-bottom:5px}
.entrytitle h2 a{color:$titlelinkcolor}
.entrytitle h2 a:hover{color:$linkhovercolor}
.entrytitle .meta{background-color:$bgcolorpostmeta; padding:3px; color:#cc00af; font-size:12px; margin-bottom:8px; line-height:20px}
.entrytitle .meta a{color:$linkcolor}
.entrytitle .meta a:hover{color:$linkhovercolor}
entrytitle h2{margin:0px; font-weight:bold; font-size:17px; padding:0px; margin-bottom:5px}
.entrytitle h2 a{color:$titlelinkcolor}
.entrytitle h2 a:hover{color:$linkhovercolor}
.entrytitle .meta{background-color:$bgcolorpostmeta; padding:3px; color:#cc00af; font-size:12px; margin-bottom:8px; line-height:20px}
.entrytitle .meta a{color:$linkcolor}
.entrytitle .meta a:hover{color:$linkhovercolor}
