# #b3170f

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

## Values

- Hex: `#b3170f`
- RGB: rgb(179, 23, 15)
- HSL: hsl(3, 85%, 38%)
- OKLCH: oklch(0.49 0.189 29.3)
- Relative luminance: 0.1023
- Nearest named color: All Systems Red (#b30103, Δ 1.182) — https://brandsweets.com/colors/all-systems-red
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b3170f

## Tints & shades

- Tints (toward white): #d01a11, #ec1e13, #ee392f, #f0544c, #f36f68, #f58a84, #f7a5a1, #fac0bd, #fcdbd9, #fef6f6
- Shades (toward black): #a5150d, #92130c, #84110b, #710e09, #630d08, #550b07, #420805, #340704, #210403, #130202

## Harmonies

- Complementary: #0fabb3
- Analogous: #b30f59, #b3690f
- Triadic: #0fb317, #170fb3
- Split-complementary: #0fb369, #0f59b3
- Tetradic: #59b30f, #0fabb3, #690fb3

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

- On white (#ffffff): 6.89:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #af160e (7.13:1)
- On black (#000000): 3.05:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e71d13 (4.58:1); AA: background → #d1d1d1 (4.51:1); AAA: text → #f26a63 (7.02:1)

## Brands using this color

- **Twilio** — accent #b10f23 (Δ 1.866) — https://brandsweets.com/colors/brands/twilio-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/b3170f-c4a39c-62cb9d-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: "#b3170f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.