Uppercase S (S) is the Basic Latin character at Unicode U+0053 (LATIN CAPITAL LETTER S). You can type S directly in HTML, or write it with a numeric character reference when you need an explicit entity form.
Remember
Character S
Unicode U+0053
Hex entity S
Decimal S
CSS escape \0053
Named entity (none)
Official name LATIN CAPITAL LETTER S
Using Hex Code: S
Using HTML Code: S
Using Direct Character: S
Using CSS Entity: S
The letter S follows R in the alphabet.
How It Works
1. Hex / decimal:U+0053 → S or S in HTML.
2. Direct: typing S in a UTF-8 file is the simplest and preferred approach.
3. CSS: use \0053 in content (not an HTML entity). The four-digit form avoids ambiguity with following hex digits.
4. Sentence: shows ordinary text use — no entity required for everyday letters.
Pitfalls & Tips
Common mistakes when working with this character.
Prefer
Type S in body text
ASCII letters do not need entities for normal reading. Prefer typing S directly.
Named?
No named entity
HTML5 does not define a named entity for U+0053. Use numeric forms when an entity is required.
Look-alikes
Not S acute
Ordinary S is U+0053. Ś (U+015A) is a different letter with an acute accent.
Case
Use the correct case
Lowercase is s (U+0073). Do not mix case when casing matters for identifiers or display.
CSS
Pad the CSS escape
Use \0053 (not bare \53) so a following digit is not absorbed into the escape.
Semicolon
End references
Always finish with ; — write S, not S.
Compatibility
Browser Support
Uppercase S / LATIN CAPITAL LETTER S (U+0053) and its numeric entity forms (S, S, CSS \\0053) are supported in all mainstream browsers as a core ASCII letter.
✓ Universal support
Uppercase S
Prefer typing S in UTF-8 HTML. Use hex, decimal, or CSS escape when you need an explicit form.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+0053 / entitiesFull support
Bottom line: Prefer typing S in body text. Use S / S when you need an entity, and \\0053 only inside CSS content.
Remember
Key Takeaways
Unicode: this character is U+0053 (decimal 83) — LATIN CAPITAL LETTER S.
HTML: prefer typing S, or use S / S.
CSS: use \0053 inside content for generated text.
Watch out: no named entity; U+0053 ≠ U+015A (S acute).
One line:U+0053 → type S / S / S / CSS \0053.
Frequently Asked Questions
Type S directly in UTF-8 HTML, or use S (hex), S (decimal), or the CSS escape \0053 in the content property. All render U+0053.
U+0053 (hex 53, decimal 83). Unicode names it LATIN CAPITAL LETTER S. It belongs to Basic Latin (ASCII) and is the nineteenth letter of the English alphabet.
No. ASCII letters like S do not have named HTML entities in HTML5. Use numeric references like S or S when you need an entity form.
For normal body text, type S directly. Use entities when generating content in CSS, when you want explicit encoding, or when escaping is required.
U+0053 is ordinary capital S. U+015A is LATIN CAPITAL LETTER S WITH ACUTE (Ś). U+0073 is lowercase s. They are different characters.
HTML entities (S or S) go in markup. The CSS escape \0053 is used in stylesheets (usually in the content property of ::before/::after). Both render the same glyph.
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Did you know?
Uppercase S is Unicode U+0053 (decimal 83) — official name LATIN CAPITAL LETTER S in Basic Latin (ASCII). HTML5 has no named entity for it — typing S directly is usually best.
