Keyword
blue
Info
FrequencyTop 400-500
Type
Kyōiku (1st grade) 
?
KankenLevel 10
Heisig1654
Readings
あお
(60%)
せい
(34%)
さお
(2%)
Composed of
king with a hat
moon
Mnemonic

If a king with a hat would live on the moon, he would certainly appear blue due to all of the blue light reflected off Earth.

Used in kanji (9 in total)
emotion
spirit (of life)
quiet
clear up
Used in vocabulary (379 in total)
blue; azure; green; pale; gray; unripe
blue; azure; green; green light (traffic); black (horse coat color); blue 5-point card; immature
youth; young man
Examples (200 in total)
That girl's eyes are blue.
That blue one is also mine.
This building is blue.
This is a blue house.
But his eyes were blue and bright.
That sea is blue.
I've decided to buy the blue car.
Do you know the reason why the sky looks blue?
How blue the sky is!
Why is the sky blue?
Your lips are blue.
His eyes are blue.
He has blue eyes.
He reached the blue sea.
Her eyes are blue.
She has large blue eyes.
She decided on a blue dress.
She has blue eyes.
Get out of the water. Your lips are blue.
The sea is blue.
My eyes are blue.
Do you know why the sky is blue?
The sky is blue.
The flower is blue.
The car is blue.
Wear something blue.
He has a blue car.
The blue dress suits her.
He's a fine young man.
That blue dress suits you very well.
I like this blue dress.
She looks pale as if she were ill.
One is blue.
His car was blue and hers was red.
He thinks that blue is the most beautiful color.
My favorite color is blue.
I prefer blue to red.
I like blue.
Which color do you like more, blue or red?
Blue is my favorite color.
She had a blue dress on at the party yesterday.
Which colour do you prefer, blue or green?
Maria has blue eyes.
The blue lines on the map correspond to rivers.
I want a blue cake.
Don't touch that blue button.
Don't touch the blue button.
He has blue eyes and blond hair.
How to live is an important question for young people.
He always wears blue shirts.
Which shirt do you like more, the red one or the blue one?
I'll wear the blue shirt.
His bicycle is blue.
He has a blue coat on.
I couldn't buy a red coat, so I bought a blue one.
He was dressed in blue.
She is wearing a blue dress.
He painted the door blue.
He painted the ceiling blue.
If I were you, I would paint it blue.
The blue lines on the map represent rivers.
It's more purple than blue.
Both girls have blue eyes.
The American police are in blue uniforms.
Don't touch the blue switch!
If you mix blue and red, you'll get purple.
He had a blue jacket on.
She was wearing a blue coat.
When she heard that, she turned pale.
He turned pale to hear that.
He was blue from the cold.
He turned pale with fear.
The moment he saw me, he grew pale and ran away.
She turned pale with fear.
She looks pale with fear.
I felt my face turn pale when I heard that sound.
His face was pale with fear.
He never loses his curiosity; he is, as it were, an eternal youth.
When people came out of the factory in the evening, their faces looked white and ill.
His hands had turned blue because of the cold.
She always looks pale.
Are you sick? You look pale.
He was a dark figure with a pale face.
Her blue shoes go well with that dress.
The young man whom I employed as my assistant works very hard.
She inherited her mother's blue eyes.
She likes blue dresses.
Give me back my youth!
Almost everything that is great has been done by youth.
This flower is yellow, but all the others are blue.
She turned pale at the news.
On hearing the news, he turned pale.
When she heard the news, she turned pale.
He always wears a blue shirt.
I can see a clear blue sky and feel so good.
A white cloud is floating in the blue summer sky.
A white cloud is floating in the blue sky.
I was deceived by the blue sky and brought no umbrella.
I go up to the rooftop when I want to see the blue sky.
Your face is pale.
On hearing this, he turned pale.
What happened? You look pale.
His face turned white.
He was blue with cold.
The sky was a deep blue.
The light is green.
The signal turned green.
Wait till the light turns green.
Wait until the light changes to green.
The signal turned from red to green.
The light's green.
The light turned green.
I like blue best of all colors.
Do you have any in blue?
This is a green apple.
Seen from a spacecraft, the earth looks blue.
Seen from a spaceship, the Earth looks blue.
He turned pale the instant he saw her.
The young man burst into laughter.
He is a robust young man.
The tower was seen clearly against the blue sky.
The blue roses are very beautiful.
The earth is blue. Like an orange.
My father has a blue and gray tie.
The grass in the park is green and beautiful.
He wore a light blue tie.
That blue-white shining star is Sirius.
Clouds were floating in the blue sky.
Can you tell green from blue?
Mary wore a pale blue dress.
Yesterday, Mary gave me a book with a blue cover.
Mary has been wearing blue dresses a lot recently.
"Why is the sky blue?" "The sky isn't always blue."
It is false to say that snow is blue.
His skin has the tone of a young man's.
In 1853, the first blue jeans came out.
The color of her eyes is blue.
The car Tom bought is blue.
Tom has a blue car.
Tom's eyes are blue.
Tom always wears a blue shirt.
Tom has beautiful blue eyes.
Tom had big blue eyes.
Tom is distinguishable by his brown hair, tall stature, and blue eyes.
Tom is wearing a blue hat.
Tom has blue eyes.
Tom turned pale.
Tom was wearing blue jeans.
Tom is wearing blue jeans.
Tom said that I looked very pale.
This pear is green.
Blend the red paint with the blue paint.
Blend the blue paint with the yellow paint.
The mountains are red against the blue sky.
Tom has tattoos all over his body.
Do you have a tattoo?
This blue sweater is very pretty.
Tom wasn't wearing a blue sweater.
The red sweater is more expensive than the blue one.
The moment she heard the news, she turned pale.
His face turned pale on hearing the news.
The very thought of snakes makes her turn pale.
Your lips are turning blue.
His face turned pale.
He turned pale at the news.
Her face suddenly went pale.
Her face turned pale.
Suddenly, her face was pale.
On hearing the news, she turned pale.
Please change this for a blue one.
I painted the gate blue.
That child wanted to try on that blue shirt.
The car parked in front of Tom's house was blue.
There was nothing but the blue sea as far as the eye could reach.
Woods grow greener in the spring.
He couldn't tell green from blue.
The mountain is standing out in sharp relief against the blue sky.
The blue of her eyes stands out against her rather dark skin.
Scientists have come up with many explanations for why the sky is blue.
Police officers wear blue uniforms.
She wore a dark blue scarf.
A green banana is not ripe enough to eat.
I advised the shy young man to declare his love for the beautiful girl.
He is a promising youth.
Bronze is composed of copper and tin.
She wore a blue dress made by her mother for the concert.
The girl with blue eyes is Jane.
Sulfur burns with a blue flame.
One of her three cars is blue and the others are red.
One of her three cars is blue and the others are white.
Many young men tend to commit the same errors.
Tom is wearing a blue bandana on his head.
He has a lot of books for the young.
I can not understand the psychology of adolescents.
When I last saw him, he was wearing a blue shirt and white slacks.
The French flag is blue, white and red.
Tom is refreshing, honest and a good young man.
I met a nice young man.
Red contrasts well with blue.
The moon began to show her pale face from behind the clouds.