diff --git a/infographics/math/pdf/semicerchi.pdf b/infographics/math/pdf/semicerchi.pdf
index c483e11..c6c6aff 100644
Binary files a/infographics/math/pdf/semicerchi.pdf and b/infographics/math/pdf/semicerchi.pdf differ
diff --git a/infographics/math/semicerchi.tex b/infographics/math/semicerchi.tex
index 8e7e147..faaa940 100755
--- a/infographics/math/semicerchi.tex
+++ b/infographics/math/semicerchi.tex
@@ -9,7 +9,7 @@
 %
 \usepackage{xcolor}
 %
-\definecolor{space}{HTML}{0A2543}
+\definecolor{space}{HTML}{1F2C4E}
 \definecolor{earth}{HTML}{0089FA}
 \definecolor{dida}{HTML}{FFDE00}
 \definecolor{title}{HTML}{FBA706}