# #b30021

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

## Values

- Hex: `#b30021`
- RGB: rgb(179, 0, 33)
- HSL: hsl(349, 100%, 35%)
- OKLCH: oklch(0.484 0.195 23.5)
- Relative luminance: 0.0969
- Nearest named color: All Systems Red (#b30103, Δ 1.871) — https://brandsweets.com/colors/all-systems-red
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b30021

## Tints & shades

- Tints (toward white): #d10026, #f5002d, #ff143f, #ff3358, #ff5776, #ff758f, #ff94a8, #ffb3c1, #ffd6de, #fff5f7
- Shades (toward black): #a3001e, #94001b, #850018, #750016, #660013, #52000f, #42000c, #330009, #240007, #140004

## Harmonies

- Complementary: #00b392
- Analogous: #b3007a, #b33900
- Triadic: #21b300, #0021b3
- Split-complementary: #00b339, #007ab3
- Tetradic: #7ab300, #00b392, #3900b3

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

- On white (#ffffff): 7.15:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.94:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #eb002b (4.57:1); AA: background → #cfcfcf (4.59:1); AAA: text → #ff5c7a (7.06:1); AAA: background → #ffffff (7.15:1)

## Brands using this color

- **Twilio** — accent #b10f23 (Δ 0.671) — https://brandsweets.com/colors/brands/twilio-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/b30021-c49c9f-62cb85-2d231f-f1e9ee?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: "#b30021" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.