# #bf0306

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

## Values

- Hex: `#bf0306`
- RGB: rgb(191, 3, 6)
- HSL: hsl(359, 97%, 38%)
- OKLCH: oklch(0.506 0.206 28.8)
- Relative luminance: 0.1115
- Nearest named color: Blood Kiss (#c30b0a, Δ 1.012) — https://brandsweets.com/colors/blood-kiss
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/bf0306

## Tints & shades

- Tints (toward white): #dd0307, #fb0408, #fc2226, #fc4043, #fd5e61, #fd7c7f, #fd9b9c, #feb9ba, #fed7d7, #fff5f5
- Shades (toward black): #b00306, #9c0205, #8d0204, #790204, #690203, #5a0103, #460102, #370102, #230101, #140001

## Harmonies

- Complementary: #03bfbc
- Analogous: #bf0364, #bf5e03
- Triadic: #06bf03, #0306bf
- Split-complementary: #03bf5e, #0364bf
- Tetradic: #64bf03, #03bfbc, #5e03bf

## Colors that go with #bf0306

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

- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #bf0306 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Bose (https://brandsweets.com/colors/brands/bose-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #bf0306: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #bf0306 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #bf0306 in 6 real palettes, including Maple and Ember, as the accent. Seen in: Maple (https://brandsweets.com/palettes/warm#maple), Ember (https://brandsweets.com/palettes/bold#ember), Trailhead (https://brandsweets.com/palettes/warm#trailhead), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Tim Hortons's brand system and native Cybersecurity's brand system put Blue beside #bf0306, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #bf0306: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: IHG (https://brandsweets.com/colors/brands/ihg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #bf0306 in 5 real palettes, including Olive Grove and BrandSweets's brand system, as the lead colour. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #bf0306: 12 real palettes, including Campbell's's brand system and Nissan's brand system, as the accent. Seen in: Campbell's (https://brandsweets.com/colors/brands/campbells-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), AT&T (https://brandsweets.com/colors/brands/att-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 6.5:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b50306 (7.05:1)
- On black (#000000): 3.23:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #ec0407 (4.59:1); AA: background → #d9d9d9 (4.6:1); AAA: text → #fd6366 (7.15:1)

## Brands using this color

- **Datadog** — accent #bf0000 (Δ 0.224) — https://brandsweets.com/colors/brands/datadoghq-com
- **Fenty Beauty** — secondary #bd0100 (Δ 0.512) — https://brandsweets.com/colors/brands/fentybeauty-com
- **Vodafone** — secondary #bd0000 (Δ 0.527) — https://brandsweets.com/colors/brands/vodafone-com
- **Campbell's** — secondary #bf1a1e (Δ 1.494) — https://brandsweets.com/colors/brands/campbells-com
- **Huawei** — secondary #c7000b (Δ 1.676) — https://brandsweets.com/colors/brands/huawei-com
- **3M** — secondary #c80000 (Δ 1.869) — https://brandsweets.com/colors/brands/3m-com
- **In-N-Out Burger** — secondary #b60000 (Δ 1.992) — https://brandsweets.com/colors/brands/in-n-out-com

## Curated palettes containing it

- **Newsprint** (editorial, muted, warm) — #b91c1c, #78716c, #d97706, #f5f1ea, #1c1917 — Ink-black on warm paper with a single red — the broadsheet hierarchy that lets typography lead. — tool: https://brandsweets.com/palettes/new/b91c1c-78716c-d97706-f5f1ea-1c1917 — collection: https://brandsweets.com/palettes/editorial

## 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/bf0306-c4a09c-62cb96-2d251f-f1e9ed?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: "#bf0306" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.