Kontrast
A Color Contrast Checker
mature
available in 26 distros
Alpine 3.19
Alpine 3.20
Alpine edge
Arch
Arch Linux ARM aarch64
AUR
Debian 11
Debian 12
Debian 13
Debian unstable
Devuan 4.0
Devuan unstable
Fedora 39
Fedora 40
Fedora rawhide
Flathub
Gentoo
GNU Guix
Manjaro stable
Manjaro unstable
Nix stable 24.05
Nix unstable
Openmandriva 5 0
openSUSE Tumbleweed
PureOS byzantium
PureOS landing