# #b91f0e

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

## Values

- Hex: `#b91f0e`
- RGB: rgb(185, 31, 14)
- HSL: hsl(6, 86%, 39%)
- OKLCH: oklch(0.506 0.19 30.5)
- Relative luminance: 0.1133
- Nearest named color: Bloodshed (#ba271a, Δ 1.009) — https://brandsweets.com/colors/bloodshed
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b91f0e

## Tints & shades

- Tints (toward white): #d52410, #ee2c17, #f04633, #f26050, #f47a6c, #f68f84, #f8a9a0, #fac3bd, #fcddd9, #fef6f6
- Shades (toward black): #ab1d0d, #98190b, #8a170a, #771409, #681208, #550e06, #470c05, #340904, #260603, #130301

## Harmonies

- Complementary: #0ea8b9
- Analogous: #b90e52, #b9750e
- Triadic: #0eb91f, #1f0eb9
- Split-complementary: #0eb975, #0e52b9
- Tetradic: #52b90e, #0ea8b9, #750eb9

## Colors that go with #b91f0e

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 #b91f0e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Bose (https://brandsweets.com/colors/brands/bose-com), Behance (https://brandsweets.com/colors/brands/behance-net), 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 #b91f0e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), Honda (https://brandsweets.com/colors/brands/honda-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 #b91f0e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Redfin (https://brandsweets.com/colors/brands/redfin-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #b91f0e in 5 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 Dunkin''s brand system put Blue beside #b91f0e, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Doordash (https://brandsweets.com/colors/brands/doordash-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b91f0e: 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
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #b91f0e: 4 real palettes, including Behance's brand system and MLB's brand system, as the supporting colour. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), MLB (https://brandsweets.com/colors/brands/mlb-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Reebok (https://brandsweets.com/colors/brands/reebok-com). — https://brandsweets.com/colors/cobalt
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #b91f0e in 6 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), Cider (https://brandsweets.com/palettes/warm#cider). — https://brandsweets.com/colors/darkolivegreen

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

- On white (#ffffff): 6.43:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ab1d0d (7.21:1)
- On black (#000000): 3.27:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e42611 (4.58:1); AA: background → #d9d9d9 (4.56:1); AAA: text → #f36d5e (7.16:1)

## Brands using this color

- **Fenty Beauty** — secondary #bd0100 (Δ 1.66) — https://brandsweets.com/colors/brands/fentybeauty-com
- **Campbell's** — secondary #bf1a1e (Δ 1.669) — https://brandsweets.com/colors/brands/campbells-com
- **Vodafone** — secondary #bd0000 (Δ 1.698) — https://brandsweets.com/colors/brands/vodafone-com
- **Datadog** — accent #bf0000 (Δ 1.782) — https://brandsweets.com/colors/brands/datadoghq-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/b91f0e-c4a59c-62cba3-2d271f-f1e9ec?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: "#b91f0e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.