diff --git a/src/utils.cpp b/src/utils.cpp
index 576cebd..512c842 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -4,6 +4,7 @@
 #include <iostream>
 #include <iomanip>
 #include <string>
+#include <stdexcept>
 
 using namespace sc;
 
@@ -53,6 +54,146 @@ void term::show_cursor() const {
     *_out << "\x1b[?25h";
 }
 
+void term::reset() const {
+    *_out << "\x1b[m";
+}
+
+void term::bold() const {
+    *_out << "\x1b[1m";
+}
+
+void term::italic() const {
+    *_out << "\x1b[3m";
+}
+
+void term::underline() const {
+    *_out << "\x1b[4m";
+}
+
+void term::overline() const {
+    *_out << "\x1b[53m";
+}
+
+void term::strikethru() const {
+    *_out << "\x1b[9m";
+}
+
+void term::blinkslow() const {
+    *_out << "\x1b[5m";
+}
+
+void term::blinkfast() const {
+    *_out << "\x1b[6m";
+}
+
+void term::reverse() const {
+    *_out << "\x1b[7m";
+}
+
+void term::blackf() const {
+    *_out << "\x1b[30m";
+}
+
+void term::redf() const {
+    *_out << "\x1b[31m";
+}
+
+void term::greenf() const {
+    *_out << "\x1b[32m";
+}
+
+void term::yellowf() const {
+    *_out << "\x1b[33m";
+}
+
+void term::bluef() const {
+    *_out << "\x1b[34m";
+}
+
+void term::magentaf() const {
+    *_out << "\x1b[35m";
+}
+
+void term::cyanf() const {
+    *_out << "\x1b[36m";
+}
+
+void term::whitef() const {
+    *_out << "\x1b[37m";
+}
+
+void term::defaultf() const {
+    *_out << "\x1b[39m";
+}
+
+void term::grayf(int val) const {
+    gray(val, 38);
+}
+
+void term::rgbf(int r, int g, int b) const {
+    rgb(r, g, b, 38);
+}
+
+void term::blackb() const {
+    *_out << "\x1b[40m";
+}
+
+void term::redb() const {
+    *_out << "\x1b[41m";
+}
+
+void term::greenb() const {
+    *_out << "\x1b[42m";
+}
+
+void term::yellowb() const {
+    *_out << "\x1b[43m";
+}
+
+void term::blueb() const {
+    *_out << "\x1b[44m";
+}
+
+void term::magentab() const {
+    *_out << "\x1b[45m";
+}
+
+void term::cyanb() const {
+    *_out << "\x1b[46m";
+}
+
+void term::whiteb() const {
+    *_out << "\x1b[47m";
+}
+
+void term::defaultb() const {
+    *_out << "\x1b[49m";
+}
+
+void term::grayb(int val) const {
+    gray(val, 48);
+}
+
+void term::rgbb(int r, int g, int b) const {
+    rgb(r, g, b, 48);
+}
+
+void term::gray(int val, int code) const {
+    if (val < 0 || val > 24) {
+        throw std::invalid_argument("gray value out of range");
+    }
+    *_out << "\x1b[" << code << ";5;" << 232 + val << "m";
+}
+
+void term::rgb(int r, int g, int b, int code) const {
+    if (r < 0 || r > 5 || g < 0 || g > 5 || b < 0 || b > 5) {
+        throw std::invalid_argument("rgb color component out of range");
+    }
+    *_out << "\x1b[" << code << ";5;" << (16 + 36 * r + 7 * g + b) << "m";
+}
+
+// ------------------------------------------------------------------------
+
 cursor_hider::cursor_hider(int fd) : _t {fd} {
     _t.hide_cursor();
 }
diff --git a/src/utils.hpp b/src/utils.hpp
index c17b4f4..9cc76bd 100644
--- a/src/utils.hpp
+++ b/src/utils.hpp
@@ -12,6 +12,9 @@ namespace sc {
         struct winsize _ws;
         std::ostream* _out {nullptr};
 
+        void gray(int val, int code) const;
+        void rgb(int r, int g, int b, int code) const;
+
         public:
             term(int fd);
 
@@ -22,6 +25,43 @@ namespace sc {
 
             void hide_cursor() const;
             void show_cursor() const;
+
+            void reset() const;
+
+            void bold() const;
+            void italic() const;
+            void underline() const;
+            void overline() const;
+            void strikethru() const;
+            void blinkslow() const;
+            void blinkfast() const;
+            void reverse() const;
+
+            void blackf() const;
+            void redf() const;
+            void greenf() const;
+            void yellowf() const;
+            void bluef() const;
+            void magentaf() const;
+            void cyanf() const;
+            void whitef() const;
+            void defaultf() const;
+
+            void grayf(int val) const; // val = 0..23
+            void rgbf(int r, int g, int b) const; // r,g,b = 0..5
+
+            void blackb() const;
+            void redb() const;
+            void greenb() const;
+            void yellowb() const;
+            void blueb() const;
+            void magentab() const;
+            void cyanb() const;
+            void whiteb() const;
+            void defaultb() const;
+
+            void grayb(int val) const; // val = 0..23
+            void rgbb(int r, int g, int b) const; // r,g,b = 0..5
     };
 
     class cursor_hider {