deep blue
"deep-blue" is a 8-letter English headword indexed on PlainSpell.
The verdict
“deep blue” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An intense, relatively dark blue.
| Property | Value |
|---|---|
| Headword | deep blue |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “deep blue” sits in English frequency
Rare enough to double-check
deep blue is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.
No generated misspelling entries exist for deep blue in our index, suggesting the orthography follows predictable English patterns. We don't track a confusable pairing for this entry, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From Middle English depe blew, equivalent to deep + blue. The correct English form is deep blue, spelled D-E-E-P- -B-L-U-E.
Definition
- 1An intense, relatively dark blue.
- 2An extremely Democratic-leaning area.
Etymology
From Middle English depe blew, equivalent to deep + blue.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “deep blue”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is D-E-E-P- -B-L-U-E - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.