diff --git a/bootstrap/less/variables.less b/bootstrap/less/variables.less
index 121022319..9fe273aba 100644
--- a/bootstrap/less/variables.less
+++ b/bootstrap/less/variables.less
@@ -71,17 +71,22 @@
 //@font-family-monospace:   "Nova Mono", Menlo, Monaco, Consolas, monospace;
 //@font-family-base:        @font-family-serif;
 
+@mag1:			  sqrt(sqrt(2));
+@mag2:			  @mag1 * @mag1;
+@mag3:			  @mag2 * @mag1;
+@mag4:			  @mag3 * @mag1;
 
+@maghalf:		  sqrt(@mag1);
 
 @font-size-base:          15px;
-@font-size-large:         ceil((@font-size-base * 1.189)); // ~18px
-@font-size-small:         ceil((@font-size-base * 0.841)); // ~12px
+@font-size-large:         ((@font-size-base * @mag1)); // 18px
+@font-size-small:         ((@font-size-base / @mag1)); // 13px
 
-@font-size-h1:            ceil((@font-size-base * 2.000)); // ~28px
-@font-size-h2:            ceil((@font-size-base * 1.681)); // ~24px
-@font-size-h3:            ceil((@font-size-base * 1.414)); // ~20px
-@font-size-h4:            ceil((@font-size-base * 1.189)); // ~16px
-@font-size-h5:            @font-size-base;
+@font-size-h1:            ceil((@font-size-base * @mag4)); // 31px
+@font-size-h2:            ceil((@font-size-base * @mag3)); // 26px
+@font-size-h3:            ceil((@font-size-base * @mag2)); // 22px
+@font-size-h4:            ceil((@font-size-base * @mag1)); // 18px
+@font-size-h5:            ceil((@font-size-base * @maghalf));// 16px
 @font-size-h6:            @font-size-base;
 
 //** Unit-less `line-height` for use in components like buttons.
@@ -594,7 +599,7 @@
 //** Success label background color
 @label-success-bg:            @brand-success;
 //** Info label background color
-@label-info-bg:               @brand-info;
+@label-info-bg:               darken(saturate(@brand-info, 5%), 12%);
 //** Warning label background color
 @label-warning-bg:            @brand-warning;
 //** Danger label background color
@@ -879,7 +884,7 @@
 //** Blockquote small color
 @blockquote-small-color:      @gray-light;
 //** Blockquote font size
-@blockquote-font-size:        (@font-size-base * 1.189);
+@blockquote-font-size:        (@font-size-base * @mag1);
 //** Blockquote border color
 @blockquote-border-color:     @gray-lighter;
 //** Page header border color