Black Olive

is a saturated very dark warm redish 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

Ebony

# 15122B

or triadic complementary

Tamarind

# 2B1228

and triadic complementary

Gable Green

# 12282B

To a colorblind person appears

Mine Shaft

# 222222