U21C7

u21C7 refers to the Unicode code point U+21C7, a symbol in the Arrows block of the Unicode standard. In practice, it is treated as an arrow symbol, but the exact visual glyph is font-dependent. Different fonts may render the character with subtle variations, so the appearance of the symbol is not fixed across all typefaces.

Encoding and representation: U+21C7 has the decimal value 8647. In HTML, it can be represented as a numeric character reference ⇇ or by its hexadecimal form ⇇. In UTF-8, the code point encodes as E2 9C 87. In CSS, the character can be included with an escape sequence such as \21C7 (optionally followed by a space to terminate the escape).

Usage: As part of the arrows family, U+21C7 is used in mathematical notation, diagrams, and user interfaces to convey directional information, mapping, or flow. Because arrow symbols cover a wide range of directional cues, the exact semantics of U+21C7 can vary with context, and users should rely on surrounding text to clarify its intended meaning.

Accessibility and rendering: Font support for U+21C7 is widespread but not universal. To ensure correct display, documents should use fonts that include the character, and provide fallbacks if necessary. When interpreting for assistive technologies, authors should supply textual descriptions or labels to convey the intended meaning, since the visual glyph can differ between fonts.

See also: Arrows block in Unicode, and related directional symbols such as U+21C6, U+21C8, as well as common arrow code points like U+2190 and U+2192 for broader directional notation.