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
bosun
dialog
django-constraints
prom-client
code-documentation
jwcrypto
google-iam
vmware-player
yelp
collada
openxml
async-ctp
allure
jsonata
entity-framework-5
basic-authentication
tws
android-4.3-jelly-bean
postman
idtabs
pycountry-convert
genstage
getproperties
file-system-storage
getmethod
android-audio-streams
data-profiling
lock-timeout
language-specifications
threadabortexception