U+6731 "朱" CJK Unified Ideograph-# Unicode Character
Unicode Version 17.0
朱
U+6731 "朱" CJK Unified Ideograph-# is a Chinese character that primarily means "vermilion" or "bright red," historically derived from the color of the cinnabar pigment used in ancient China. It also serves as a common surname in Chinese culture, famously held by figures such as the Ming dynasty founder Zhu Yuanzhang. In classical texts, "朱" can denote the southern direction, associated with the vermilion bird in traditional cosmology, and it appears as a component in compounds like "朱砂" (cinnabar) or "朱门" (literally "vermilion gates," referring to wealthy households). The character's structure combines the tree radical "木" with an additional stroke, reflecting its etymological link to the color of the tree's heartwood or sap.
General Properties
| Code Point | U+6731 |
| Version Added | 1.1 |
| Name | CJK Unified Ideograph-# |
| Block | CJK Unified Ideographs |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | 朱 |
| HTML Hex Encoding | 朱 |
| UTF-8 Encoding | 0xE6 0x9C 0xB1 |
| UTF-16 Encoding | 0x6731 |
| UTF-32 Encoding | 0x00006731 |
| C/C++/Java Escape | \u6731 |
Unicode Properties
Unihan Properties
| kBigFive | A6B6 |
| kCCCII | 21436F |
| kCNS1986 | 1-4837 |
| kCNS1992 | 1-4837 |
| kCangjie | HJD |
| kCantonese | zyu1 |
| kCihaiT | 668.201 |
| kCowles | 316 |
| kDaeJaweon | 0893.040 |
| kDefinition | cinnabar, vermilion; surname |
| kEACC | 21436F |
| kFanqie | 章俱 |
| kFenn | 499E |
| kFennIndex | 93.04 |
| kFourCornerCode | 2590.0 |
| kGB0 | 5476 |
| kGB1 | 5476 |
| kGSR | 0128a |
| kHangul | 주:0E |
| kHanYu | 21154.030 |
| kHanyuPinyin | 21154.030:zhū,shū |
| kHKGlyph | 1846 |
| kIICore | AGTJHKMP |
| kIRGDaeJaweon | 0893.040 |
| kIRGHanyuDaZidian | 21154.030 |
| kIRGKangXi | 0509.130 |
| kIRG_GSource | G0-566C |
| kIRG_HSource | HB1-A6B6 |
| kIRG_JSource | J0-3C6B |
| kIRG_KPSource | KP0-E9E8 |
| kIRG_KSource | K0-7139 |
| kIRG_TSource | T1-4837 |
| kIRG_VSource | V1-5931 |
| kJapanese | シュ あか あけ |
| kJoyoKanji | 2010 |
| kKoreanEducationHanja | 2007 |
| kTGH | 2013:445 |
| kJapaneseKun | AKA AKE |
| kJapaneseOn | SHU |
| kJis0 | 2875 |
| kKangXi | 0509.130 |
| kKorean | CWU |
| kLau | 1565 |
| kMainlandTelegraph | 2612 |
| kMandarin | zhū |
| kMatthews | 1346 |
| kMeyerWempe | 346 |
| kMojiJoho | MJ013583 |
| kMorohashi | 14424 |
| kNelson | 0184 |
| kPhonetic | 260 |
| kRSAdobe_Japan1_6 | C+2327+75.4.2 |
| kRSUnicode | 75.2 |
| kSBGY | 077.17 |
| kSimplifiedVariant | "朱" U+6731 CJK Unified Ideograph-# |
| kSMSZD2003Index | 303.02 |
| kSMSZD2003Readings | zhū粵zyu1 |
| kTaiwanTelegraph | 2612 |
| kTang | *jio zhio |
| kTGHZ2013 | 483.090,483.100:zhū |
| kTotalStrokes | 6 |
| kTraditionalVariant | "朱" U+6731 CJK Unified Ideograph-# "硃" U+7843 CJK Unified Ideograph-# |
| kUnihanCore2020 | GHJKMPT |
| kVietnamese | cho |
| kXerox | 251:171 |
| kXHC1983 | 1506.210:zhū |