# #a71b39

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

## Values

- Hex: `#a71b39`
- RGB: rgb(167, 27, 57)
- HSL: hsl(347, 72%, 38%)
- OKLCH: oklch(0.475 0.173 16.2)
- Relative luminance: 0.0929
- Nearest named color: Bindi Red (#b0003c, Δ 2.235) — https://brandsweets.com/colors/bindi-red
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/a71b39

## Tints & shades

- Tints (toward white): #c11f42, #db244b, #e03e61, #e45877, #e8738c, #ec8da2, #f1a7b7, #f5c2cd, #f9dce2, #fef6f8
- Shades (toward black): #9a1935, #88162f, #7b142a, #691124, #5c0f20, #4f0d1b, #3d0a15, #300811, #1f050b, #120306

## Harmonies

- Complementary: #1ba788
- Analogous: #a71b7f, #a7431b
- Triadic: #39a71b, #1b39a7
- Split-complementary: #1ba743, #1b7fa7
- Tetradic: #7fa71b, #1ba788, #431ba7

## Colors that go with #a71b39

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 #a71b39 — 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), Chase (https://brandsweets.com/colors/brands/chase-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #a71b39 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Saffron (https://brandsweets.com/palettes/warm#saffron). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #a71b39 in 4 real palettes, including Ember and Maple, as the accent. Seen in: Ember (https://brandsweets.com/palettes/bold#ember), Maple (https://brandsweets.com/palettes/warm#maple), Trailhead (https://brandsweets.com/palettes/warm#trailhead), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Crimson** #dc143c [pool] — Crimson is paired with #a71b39 in 7 real palettes, including Wendy's's brand system and State Farm's brand system, as the lead colour. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Vodafone (https://brandsweets.com/colors/brands/vodafone-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #a71b39: 9 real palettes, including State Farm's brand system and Nissan's brand system, as the accent. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #a71b39 in 4 real palettes, including Fireside and Noir Beauty, as the accent. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Harvest (https://brandsweets.com/palettes/warm#harvest), Candlelight (https://brandsweets.com/palettes/warm#candlelight). — https://brandsweets.com/colors/goldenrod
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #a71b39 in 4 real palettes, including Fireside and Trailhead, as the supporting colour. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Darkroom (https://brandsweets.com/palettes/muted#darkroom). — https://brandsweets.com/colors/hunter-green
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #a71b39: 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): 7.35:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.86:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #dd2c53 (4.56:1); AA: background → #cccccc (4.57:1); AAA: text → #e8738c (7.26:1); AAA: background → #fafafa (7.04:1)

## 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/a71b39-c49ca0-62cb82-2d221f-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: "#a71b39" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.