Meaning
The kanji 黒 represents the color black. Its form tells a visual story: the top portion was originally a pictograph of a chimney blackened by smoke. The four dots at the bottom (灬) represent the fire radical. Together, they depict soot building up from a flame. This connection between heat and dark residue makes the kanji easy to recognize.
In Japan, black carries cultural meanings beyond just a color. In legal or detective contexts, 'kuro' (black) signifies guilt, while 'shiro' (white) means innocence. This is similar to the English phrase 'black and white' for clarity. It also appears in business terms; for example, 'kuroji' refers to being in the black or making a profit.
Readings
On'yomi (音読み) — Chinese-derived readings
The main on'yomi is コク (KOKU). You will see this reading in formal, technical, or academic compound words.
- 黒板 (kokuban) — blackboard
- 暗黒 (ankoku) — darkness, gloom
- 黒色 (kokushoku) — the color black (formal)
Kun'yomi (訓読み) — Native Japanese readings
The native readings are くろ (kuro) and くろ.い (kuro-i). Use 'kuro' as a noun and 'kuroi' as an adjective to describe objects like clothes, hair, or animals.
- 黒 (kuro) — black (noun)
- 黒い (kuroi) — black (adjective)
- 真っ黒 (makkuro) — pitch black, jet black
Common Words & Compounds
Appearance and Objects
黒髪 (kurokami) — black hair; often used in literature to describe beauty.
黒猫 (kuroneko) — black cat. Unlike some Western superstitions, these are often considered good luck in Japan.
黒豆 (kuromame) — black soybeans. These are a staple of Osechi Ryori (New Year food) and symbolize hard work and health.
Abstract and Business Terms
黒字 (kuroji) — profit or budget surplus. This literally translates to 'black characters' on a ledger.
白黒 (shirokuro) — black and white. It is often used in the phrase 'shirokuro tsukeru,' meaning to settle a matter or decide who is right.
黒幕 (kuromaku) — mastermind or 'political fixer.' This term comes from the black curtains used in Kabuki theater to hide stagehands.
Nature and Science
黒点 (kokuten) — sunspot (literally 'black point').
黒潮 (kuroshio) — the Japan Current, a major warm ocean current known for its deep blue-black appearance.
黒曜石 (kokuyouseki) — obsidian.
Example Sentences
黒い猫が道を横切った。
kuroi neko ga michi wo yokogitta.
A black cat crossed the road.
先生が黒板の字を消しました。
sensei ga kokuban no ji wo keshimashita.
The teacher erased the characters on the blackboard.
コーヒーはブラック（黒いまま）で飲みます。
koohii wa burakku (kuroi mama) de nomimasu.
I drink my coffee black.
雨が降りそうなので、空が真っ黒です。
ame ga furisou na node, sora ga makkuro desu.
The sky is pitch black because it looks like it will rain.
彼の会社はずっと黒字だ。
kare no kaisha wa zutto kuroji da.
His company has been in the black (profitable) for a long time.
嘘か本当か、白黒はっきりさせよう。
uso ka hontou ka, shirokuro hakkiri saseyou.
Let's clarify once and for all whether it's a lie or the truth.
この服は汚れが目立たない黒色です。
kono fuku wa yogore ga medatanai kokushoku desu.
These clothes are black so that dirt doesn't stand out.
Related Kanji
- 走 — Run, Move fast (Kanji N4)
- 思 — To Think, Feel, Imagine (Kanji N4)
- 持 — Hold, Possess, Carry (Kanji N4)
- 界 — World, Boundary, Circle (Kanji N4)
- 真 — Truth, Pure, Reality (Kanji N4)
- 死 — Death, Die (Kanji N4)
Memory Tip
Think of the top part as a piece of toast inside a toaster or a pot over a stove. The four dots at the bottom (灬) are the flames. If you leave the heat on too long, the item on top becomes charred and turns completely black. Remember: 'Flames at the bottom make the top turn black.'