sky blue

adj

"sky-blue" is a 7-letter English headword indexed on PlainSpell.

The verdict

“sky 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
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of a vibrant light blue colour, like that of the sky on a fine day.

Corpus desk

Index EN-sky-blue · sky blue · English

sky blue · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for sky blue
PropertyValue
Headwordsky blue
LanguageEnglish
Part of speechAdjective
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “sky blue” in English

sky bluesits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

sky blue is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Of a vibrant light blue colour, like that of the sky on a fine day.".

sky blue doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

No documented word history exists for this headword, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is sky blue, spelled S-K-Y- -B-L-U-E.

Definition

  1. 1
    Of a vibrant light blue colour, like that of the sky on a fine day.

Recorded use

Wiktionary example

These source excerpts show how sky blue appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. “Hi! Kostandi!” called out an old sailor in a sky-blue cloak. “How are things with you?”

This word in other languages

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

How do you spell "sky blue"?
"sky blue" is spelled S-K-Y- -B-L-U-E.
What does "sky blue" mean?
As an adjective, "sky blue" means: Of a vibrant light blue colour, like that of the sky on a fine day.
What language does "sky blue" come from?
"sky blue" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list