# #bf37e1

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

## Values

- Hex: `#bf37e1`
- RGB: rgb(191, 55, 225)
- HSL: hsl(288, 74%, 55%)
- OKLCH: oklch(0.61 0.253 318.5)
- Relative luminance: 0.1924
- Nearest named color: Magenta Affair (#aa44dd, Δ 4.124) — https://brandsweets.com/colors/magenta-affair
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/bf37e1

## Tints & shades

- Tints (toward white): #c549e4, #cc5fe7, #d271ea, #d783ec, #de99f0, #e4abf2, #eabcf5, #efcef8, #f6e4fb, #fcf6fe
- Shades (toward black): #b821de, #a61ec8, #931bb1, #81179b, #6e1485, #58106a, #460d54, #34093e, #210628, #0f0312

## Harmonies

- Complementary: #59e137
- Analogous: #6a37e1, #e137ae
- Triadic: #e1bf37, #37e1bf
- Split-complementary: #aee137, #37e16a
- Tetradic: #e16a37, #59e137, #37aee1

## Colors that go with #bf37e1

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

- **Olive Drab** #6b8e23 [harmony: complementary] — Olive Drab sits directly opposite #bf37e1 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/olivedrab
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #bf37e1: 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 #bf37e1: 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 #bf37e1: 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
- **Dark Cyan** #008b8b [harmony, pool: triadic] — Dark Cyan completes a triad with #bf37e1 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/darkcyan
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #bf37e1: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Medium Slate Blue** #7b68ee [harmony, pool: analogous] — Medium Slate Blue is #bf37e1's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: monday.com (https://brandsweets.com/colors/brands/monday-com). — https://brandsweets.com/colors/mediumslateblue
- **Taupe** #483c32 [pool] — Taupe is paired with #bf37e1 in two real palettes: Loom's brand system and Obsidian's brand system, as that palette's text colour. Seen in: Loom (https://brandsweets.com/colors/brands/loom-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 4.33:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #bc2ee0 (4.56:1); AA: background → #0a0a0a (4.57:1); AAA: text → #901aad (7.15:1)
- On black (#000000): 4.85:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #d06de9 (7.05:1)

## 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/bf37e1-be9fc1-aacb62-2d1f2a-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: "#bf37e1" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.