# #b91d4e

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

## Values

- Hex: `#b91d4e`
- RGB: rgb(185, 29, 78)
- HSL: hsl(341, 73%, 42%)
- OKLCH: oklch(0.514 0.189 10)
- Relative luminance: 0.1174
- Nearest named color: Fancy Red Wine (#b40441, Δ 2.467) — https://brandsweets.com/colors/fancy-red-wine
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b91d4e

## Tints & shades

- Tints (toward white): #d4215a, #df3067, #e34a7a, #e6608b, #ea7b9e, #ee95b1, #f2abc2, #f6c6d5, #f9dce5, #fef6f9
- Shades (toward black): #a81a47, #96173f, #89153a, #771332, #65102b, #540d23, #420a1c, #350816, #23060f, #120307

## Harmonies

- Complementary: #1db988
- Analogous: #b91d9d, #b93a1d
- Triadic: #4eb91d, #1d4eb9
- Split-complementary: #1db93a, #1d9db9
- Tetradic: #9db91d, #1db988, #3a1db9

## Colors that go with #b91d4e

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

- **Denim** #1560bd [harmony, pool: triadic] — Denim completes a triad with #b91d4e — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/denim
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #b91d4e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #b91d4e 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), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/amber
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b91d4e: 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
- **Gold** #ffd700 [pool] — Gold shows up next to #b91d4e in 4 real palettes, including Garnet and Tabloid, as the accent. Seen in: Garnet (https://brandsweets.com/palettes/warm#garnet), Tabloid (https://brandsweets.com/palettes/editorial#tabloid), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise). — https://brandsweets.com/colors/gold
- **Midnight Blue** #191970 [pool] — 4 real palettes, including MLB's brand system and Nintendo's brand system put Midnight Blue beside #b91d4e, as the lead colour. Seen in: MLB (https://brandsweets.com/colors/brands/mlb-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/midnightblue
- **Red** #ff0000 [pool] — Red is paired with #b91d4e in 5 real palettes, including Wise's brand system and 3M's brand system, as the lead colour. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), 3M (https://brandsweets.com/colors/brands/3m-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/red
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #b91d4e in 9 real palettes, including Chase's brand system and Coinbase's brand system, as the supporting colour. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Bose (https://brandsweets.com/colors/brands/bose-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 6.27:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a81a47 (7.23:1)
- On black (#000000): 3.35:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #dd2761 (4.54:1); AA: background → #dbdbdb (4.53:1); AAA: text → #e86d94 (7.05:1)

## Brands using this color

- **Chase** — accent #bf2155 (Δ 1.618) — https://brandsweets.com/colors/brands/chase-com

## 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/b91d4e-c49ca4-62cb77-2d211f-f1e9ef?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: "#b91d4e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.