# #f3bf39

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

## Values

- Hex: `#f3bf39`
- RGB: rgb(243, 191, 57)
- HSL: hsl(43, 89%, 59%)
- OKLCH: oklch(0.83 0.153 86.2)
- Relative luminance: 0.5661
- Nearest named color: Amber (#ffbf00, Δ 2.282) — https://brandsweets.com/colors/amber
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/f3bf39

## Tints & shades

- Tints (toward white): #f5c54d, #f6cb60, #f7d273, #f8d887, #f9de9a, #fae3a8, #fbe9bc, #fcefcf, #fdf6e2, #fefcf5
- Shades (toward black): #f2b721, #e7aa0d, #cf980c, #b2830a, #9a7109, #7d5c07, #654a06, #483504, #302303, #130e01

## Harmonies

- Complementary: #396ef3
- Analogous: #f36239, #cbf339
- Triadic: #39f3bf, #bf39f3
- Split-complementary: #39cbf3, #6239f3
- Tetradic: #39f362, #396ef3, #f339cb

## Colors that go with #f3bf39

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 #f3bf39: 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), Lido (https://brandsweets.com/palettes/vivid#lido), Disney (https://brandsweets.com/colors/brands/disney-com). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: complementary] — Cornflower Blue sits directly opposite #f3bf39 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), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #f3bf39: 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 Coffee Bar and Midnight Luxe put Champagne beside #f3bf39, as that palette's text colour. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), 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 #f3bf39 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 #f3bf39 in 4 real palettes, including Farmers Market and Miro's brand system, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Miro (https://brandsweets.com/colors/brands/miro-com), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #f3bf39: 11 real palettes, including Wikipedia's brand system and Walmart's brand system, as the supporting colour. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-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 #f3bf39: 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): 1.7:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #956e09 (4.65:1); AA: background → #525252 (4.59:1); AAA: text → #6f5106 (7.35:1); AAA: background → #363636 (7.09:1)
- On black (#000000): 12.32:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Google** — accent #fbbc05 (Δ 1.776) — https://brandsweets.com/colors/brands/google-com
- **Wikipedia** — accent #f0bc00 (Δ 1.894) — https://brandsweets.com/colors/brands/wikipedia-org
- **Southwest Airlines** — accent #ffbf27 (Δ 1.908) — https://brandsweets.com/colors/brands/southwest-com
- **Ahrefs** — secondary #fac000 (Δ 1.954) — https://brandsweets.com/colors/brands/ahrefs-com
- **Lemon Squeezy** — primary #fcc434 (Δ 1.99) — https://brandsweets.com/colors/brands/lemonsqueezy-com

## Curated palettes containing it

- **Blueprint** (technical, cool, modern, dark) — #38bdf8, #818cf8, #fbbf24, #0f172a, #e2e8f0 — Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'. — tool: https://brandsweets.com/palettes/new/38bdf8-818cf8-fbbf24-0f172a-e2e8f0 — collection: https://brandsweets.com/palettes/technical
- **Trailhead** (warm, bold, vivid) — #c2410c, #365314, #fbbf24, #f4efe6, #1f1a12 — Rust, pine and sun — high-visibility earth tones that read at a distance and on a trail sign. — tool: https://brandsweets.com/palettes/new/c2410c-365314-fbbf24-f4efe6-1f1a12 — collection: https://brandsweets.com/palettes/warm
- **Ember** (bold, dark, warm) — #f25f29, #b03a2e, #f2c14e, #14100e, #f8ede3 — Flame orange on charcoal — the sports and energy palette; one accent yellow for stats and highlights. — tool: https://brandsweets.com/palettes/new/f25f29-b03a2e-f2c14e-14100e-f8ede3 — collection: https://brandsweets.com/palettes/bold

## 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/f3bf39-c4bd9c-62b2cb-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: "#f3bf39" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.