Onion

is a saturated very dark warm yellow

Yellow is the brightest color to the human eye. It represents youth, fun, happiness, sunshine and other light playful feelings. It is a cheerful energetic color.
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Goes well with complementary color

Haiti

# 0D132B

or triadic complementary

# 250D2B

and triadic complementary

# 0D2B25

To a colorblind person appears

# 1f1f1f