# #b31fc7

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#b31fc7`
- RGB: rgb(179, 31, 199)
- HSL: hsl(293, 73%, 45%)
- OKLCH: oklch(0.561 0.248 322.4)
- Relative luminance: 0.1469
- Nearest named color: Magentleman (#aa22bb, Δ 2.443) — https://brandsweets.com/colors/magentleman
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/b31fc7

## Tints & shades

- Tints (toward white): #c722dd, #ce3de1, #d353e4, #d969e8, #e083ec, #e59aef, #ebb0f3, #f0c6f6, #f7e0fa, #fdf6fe
- Shades (toward black): #a31cb5, #9319a3, #831792, #731480, #63116e, #500e58, #400b47, #300835, #200623, #100312

## Harmonies

- Complementary: #33c71f
- Analogous: #5f1fc7, #c71f86
- Triadic: #c7b31f, #1fc7b3
- Split-complementary: #86c71f, #1fc75f
- Tetradic: #c75f1f, #33c71f, #1f86c7

## Colors that go with #b31fc7

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

- **Forest Green** #228b22 [harmony: complementary] — Forest Green sits directly opposite #b31fc7 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/forestgreen
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #b31fc7: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #b31fc7: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #b31fc7: 3 real palettes, including Hasbro's brand system and Peacock, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/denim
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #b31fc7 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #b31fc7: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Crimson** #dc143c [pool] — Crimson is paired with #b31fc7 in two real palettes: Gemstone and The Ordinary's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), The Ordinary (https://brandsweets.com/colors/brands/theordinary-com). — https://brandsweets.com/colors/crimson
- **Medium Violet Red** #c71585 [harmony: analogous] — Medium Violet Red is #b31fc7's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. — https://brandsweets.com/colors/mediumvioletred

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

- On white (#ffffff): 5.33:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #9319a3 (7.22:1)
- On black (#000000): 3.94:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c322d8 (4.54:1); AA: background → #ededed (4.56:1); AAA: text → #d969e8 (7.14:1)

## Brands using this color

- **Hasbro** — accent #b822c3 (Δ 1.328) — https://brandsweets.com/colors/brands/hasbro-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/b31fc7-c19fc1-a1cb62-2d1f29-ece9f1?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: "#b31fc7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.