# #efbb1f

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

## Values

- Hex: `#efbb1f`
- RGB: rgb(239, 187, 31)
- HSL: hsl(45, 87%, 53%)
- OKLCH: oklch(0.817 0.161 87.5)
- Relative luminance: 0.5399
- Nearest named color: Baklava (#efb435, Δ 2.25) — https://brandsweets.com/colors/baklava
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/efbb1f

## Tints & shades

- Tints (toward white): #f1c237, #f2c84a, #f4cf62, #f5d575, #f7dc8d, #f8e2a0, #fae9b7, #fbefcb, #fdf6e2, #fefcf5
- Shades (toward black): #e5b010, #cd9d0e, #b58b0d, #9d790b, #8a6a0a, #725808, #5b4606, #433305, #2b2103, #130f01

## Harmonies

- Complementary: #1f53ef
- Analogous: #ef531f, #bbef1f
- Triadic: #1fefbb, #bb1fef
- Split-complementary: #1fbbef, #531fef
- Tetradic: #1fef53, #1f53ef, #ef1fbb

## Colors that go with #efbb1f

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 #efbb1f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Coastal (https://brandsweets.com/palettes/cool#coastal), Disney (https://brandsweets.com/colors/brands/disney-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: complementary] — Cornflower Blue sits directly opposite #efbb1f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #efbb1f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Midnight Luxe and Coffee Bar put Champagne beside #efbb1f, as that palette's text colour. Seen in: Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/champagne
- **Crimson** #dc143c [pool] — Crimson is paired with #efbb1f in 7 real palettes, including McDonald's's brand system and Tabloid, as the supporting colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Tabloid (https://brandsweets.com/palettes/editorial#tabloid), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #efbb1f in 4 real palettes, including Farmers Market and Undergrowth, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Miro (https://brandsweets.com/colors/brands/miro-com), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #efbb1f: 11 real palettes, including Wikipedia's brand system and Warner Bros.'s brand system, as the supporting colour. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #efbb1f: 7 real palettes, including Google's brand system and Heatwave, as the lead colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), PostHog (https://brandsweets.com/colors/brands/posthog-com), Miro (https://brandsweets.com/colors/brands/miro-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 1.78:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #94710a (4.54:1); AA: background → #4f4f4f (4.6:1); AAA: text → #6e5408 (7.16:1); AAA: background → #333333 (7.1:1)
- On black (#000000): 11.8:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Binance** — secondary #f0b90b (Δ 0.552) — https://brandsweets.com/colors/brands/binance-com
- **Wikipedia** — accent #f0bc00 (Δ 0.73) — https://brandsweets.com/colors/brands/wikipedia-org
- **Neutrogena** — accent #edb600 (Δ 1.314) — https://brandsweets.com/colors/brands/neutrogena-com
- **Google** — accent #fbbc05 (Δ 1.923) — https://brandsweets.com/colors/brands/google-com

## Curated palettes containing it

- **Maple** (autumn, warm, vivid) — #c1272d, #e8730c, #f2b705, #fff8ee, #2a1a0a — The three colours a maple goes through in October, on a warm white — loud, seasonal, and readable because the type is near-black. — tool: https://brandsweets.com/palettes/new/c1272d-e8730c-f2b705-fff8ee-2a1a0a — collection: https://brandsweets.com/palettes/autumn

## 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/efbb1f-c4be9c-62afcb-2b2d1f-f1ebe9?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: "#efbb1f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.