24-bit fg (SGR 38;2)

Category: sgr · Tags: Xterm Extensions · Specification ↗

SGR 38;2;R;G;B sets the foreground to a 24-bit RGB color. The sequence is ESC [ 38;2;R;G;B m where R, G, B are 0-255. There is also a colon-separated variant ESC [ 38:2::R:G:B m per ITU T.416, but the semicolon format has wider compatibility. This gives applications access to 16.7 million colors. Applications can check for truecolor support via COLORTERM=truecolor or COLORTERM=24bit in the environment.

Supported by 6 of 6 backends (100%)

Support Matrix

Backend	Version	Support	Notes
Alacritty	0.26.0	✓ yes
Ghostty	1.3.1	✓ yes
Kitty	0.40.0	✓ yes
vt100	0.1.0	✓ yes
WezTerm	0.1.0-fork.5	✓ yes
xterm.js	5.5.0	✓ yes

← Back to matrix · sgr features