# #b30f09

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

## Values

- Hex: `#b30f09`
- RGB: rgb(179, 15, 9)
- HSL: hsl(2, 90%, 37%)
- OKLCH: oklch(0.486 0.193 29.2)
- Relative luminance: 0.0995
- Nearest named color: All Systems Red (#b30103, Δ 0.645) — https://brandsweets.com/colors/all-systems-red
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b30f09

## Tints & shades

- Tints (toward white): #d0120b, #ed140c, #f42c25, #f54842, #f76964, #f88581, #faa19e, #fbbdbb, #fdd9d8, #fef6f5
- Shades (toward black): #a50e09, #910c08, #830b07, #740a06, #660905, #520704, #440604, #350403, #220302, #130201

## Harmonies

- Complementary: #09aeb3
- Analogous: #b30959, #b36409
- Triadic: #09b30f, #0f09b3
- Split-complementary: #09b364, #0959b3
- Tetradic: #59b309, #09aeb3, #6409b3

## Colors that go with #b30f09

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 #b30f09 — 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 #b30f09: 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 #b30f09 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), Saffron (https://brandsweets.com/palettes/warm#saffron), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #b30f09 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 #b30f09, 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
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #b30f09: 4 real palettes, including MLB's brand system and Behance's brand system, as the accent. Seen in: MLB (https://brandsweets.com/colors/brands/mlb-com), Behance (https://brandsweets.com/colors/brands/behance-net), Reebok (https://brandsweets.com/colors/brands/reebok-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/cobalt
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #b30f09 in 5 real palettes, including Olive Grove and Cider, as the lead colour. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Cider (https://brandsweets.com/palettes/warm#cider), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/darkolivegreen
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b30f09: 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). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 7.03:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.99:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #e9140c (4.57:1); AA: background → #cfcfcf (4.51:1); AAA: text → #f76964 (7.16:1); AAA: background → #ffffff (7.03:1)

## Brands using this color

- **In-N-Out Burger** — secondary #b60000 (Δ 0.745) — https://brandsweets.com/colors/brands/in-n-out-com
- **Trader Joe's** — accent #af0006 (Δ 1.302) — https://brandsweets.com/colors/brands/traderjoes-com
- **Wendy's** — secondary #b0161f (Δ 1.375) — https://brandsweets.com/colors/brands/wendys-com
- **Bose** — accent #ad0000 (Δ 1.699) — https://brandsweets.com/colors/brands/bose-com
- **Twilio** — accent #b10f23 (Δ 1.82) — https://brandsweets.com/colors/brands/twilio-com
- **Chipotle** — primary #ac241c (Δ 1.944) — https://brandsweets.com/colors/brands/chipotle-com
- **Vodafone** — secondary #bd0000 (Δ 1.981) — https://brandsweets.com/colors/brands/vodafone-com
- **Fenty Beauty** — secondary #bd0100 (Δ 1.985) — https://brandsweets.com/colors/brands/fentybeauty-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/b30f09-c4a29c-62cb9c-2d261f-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: "#b30f09" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.