# #ef900b

A color — warm, vivid, playful, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#ef900b`
- RGB: rgb(239, 144, 11)
- HSL: hsl(35, 91%, 49%)
- OKLCH: oklch(0.737 0.164 64.6)
- Relative luminance: 0.3832
- Nearest named color: À l’Orange (#f2850d, Δ 2.52) — https://brandsweets.com/colors/a-lorange
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ef900b

## Tints & shades

- Tints (toward white): #f49b1f, #f6a637, #f7b150, #f8bc68, #f9c780, #facf94, #fbdaac, #fce5c5, #fdf0dd, #fffbf5
- Shades (toward black): #db840a, #c37509, #af6a08, #975b07, #844f06, #6b4105, #583504, #3f2603, #2c1a02, #130c01

## Harmonies

- Complementary: #0b6aef
- Analogous: #ef1e0b, #dcef0b
- Triadic: #0bef90, #900bef
- Split-complementary: #0bdcef, #1e0bef
- Tetradic: #0bef1e, #0b6aef, #ef0bdc

## Colors that go with #ef900b

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #ef900b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Amazon (https://brandsweets.com/colors/brands/amazon-com), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #ef900b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [harmony, pool: complementary] — Deep Sky Blue sits directly opposite #ef900b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/deepskyblue
- **Blue** #0000ff [pool] — 4 real palettes, including Sketch's brand system and League of Legends's brand system put Blue beside #ef900b, as the accent. Seen in: Sketch (https://brandsweets.com/colors/brands/sketch-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Binance (https://brandsweets.com/colors/brands/binance-com), Lexus (https://brandsweets.com/colors/brands/lexus-com). — https://brandsweets.com/colors/blue
- **Burlywood** #deb887 [pool] — Burlywood is paired with #ef900b in 4 real palettes, including Chalkboard and Coffee Bar, as the lead colour. Seen in: Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Kiln (https://brandsweets.com/palettes/dark#kiln), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #ef900b: 5 real palettes, including Paper & Pine and Open House, as the supporting colour. Seen in: Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Open House (https://brandsweets.com/palettes/clean#open-house), Alpine (https://brandsweets.com/palettes/cool#alpine), Estate (https://brandsweets.com/palettes/luxury#estate). — https://brandsweets.com/colors/cadetblue
- **Champagne** #f7e7ce [pool] — 6 real palettes, including Woodsmoke and Forest Floor put Champagne beside #ef900b, as that palette's text colour. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/champagne
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #ef900b in 4 real palettes, including Forest Floor and Undergrowth, as the supporting colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Cider (https://brandsweets.com/palettes/warm#cider). — https://brandsweets.com/colors/darkolivegreen

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 2.42:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #aa6708 (4.51:1); AA: background → #3b3b3b (4.62:1); AAA: text → #7f4c06 (7.15:1); AAA: background → #1c1c1c (7.03:1)
- On black (#000000): 8.66:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Citrus Grove** (summer, warm, vivid, friendly) — #f28c28, #8bc34a, #ffd23f, #fffcf2, #2c2410 — Orange, lime leaf and lemon — a citrus palette that reads fresh, for drinks, produce and anything seasonal. — tool: https://brandsweets.com/palettes/new/f28c28-8bc34a-ffd23f-fffcf2-2c2410 — collection: https://brandsweets.com/palettes/summer

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ef900b-c4b89c-62c0cb-2d2d1f-f1eae9?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#ef900b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.