Cardinal

is a very saturated very light warm red

Red is a very strong color. It is a noticeable color that is often used on caution and warning signs. It is often associated with stop or beware. It’s a hot color that evokes a powerful emotion of passion, lust, sex, energy, blood and war.
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Goes well with complementary color

Java

# 21D0D3

or triadic complementary

Persian Blue

# 2421D3

and triadic complementary

Malachite

# 21D324

To a colorblind person appears

Scorpion

# 5d5d5d