According to MDN, the list attribute can be used for <input> elements of type color to provide a list of predefined colors. That page also indicates that
libav
marimekko-chart
atoi
asianfonts
fill
nextflow
fminsearch
unit-testing
android-percent-library
dbf
react-native-fbsdk
hermite
python-3.8
wildfly-22
modelattribute
hostname-verifier
filter-input
jersey
tshark
sudoers
duffs-device
win32-process
data-fitting
node-amqplib
angular-materialize
superimpose
switchery
django-import-export-celery
hardware-infrastructure
pengwin