Update hex values to meet WCAG AA Guidelines for color contrast

    - Change #3C6DF0 to #2D60E5
    - Change #E62325 to #DA1416

    Tested:  I spot tested the Server Overview, the
    Event log and System logs pages to verify color changes and overall
    validate the update does not negatively impact the visual integrity
    of the app.

    Resolves openbmc/phosphor-webui#70

Signed-off-by: Derick Montague <derick.montague@ibm.com>
Change-Id: I2315527a98937176b3e3a2a2118e1798fa4c9e5d
diff --git a/app/common/styles/base/mixins.scss b/app/common/styles/base/mixins.scss
index 6067a0e..c29936d 100644
--- a/app/common/styles/base/mixins.scss
+++ b/app/common/styles/base/mixins.scss
@@ -56,7 +56,7 @@
 }
 
 @mixin bgImage__arrowDown-accent {
-  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' version='1.1' width='32' height='24' viewBox='0 0 32 24'><polygon points='0,0 32,0 16,24' style='fill: #3c6df0'></polygon></svg>");
+  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' version='1.1' width='32' height='24' viewBox='0 0 32 24'><polygon points='0,0 32,0 16,24' style='fill: #2d60e5'></polygon></svg>");
 }
 
 @mixin bgImage__arrowDown-grey {