# #a643db

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

## Values

- Hex: `#a643db`
- RGB: rgb(166, 67, 219)
- HSL: hsl(279, 68%, 56%)
- OKLCH: oklch(0.585 0.226 311.2)
- Relative luminance: 0.1724
- Nearest named color: Magenta Affair (#aa44dd, Δ 0.835) — https://brandsweets.com/colors/magenta-affair
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/a643db

## Tints & shades

- Tints (toward white): #ae54de, #b665e2, #c07ae6, #c88be9, #d09cec, #d8aeef, #e1bff3, #ebd4f7, #f3e5fa, #fbf6fd
- Shades (toward black): #9c2dd7, #8d26c5, #7b21ab, #6b1d96, #5c1881, #4d146b, #3d1056, #2b0b3c, #1c0727, #0c0311

## Harmonies

- Complementary: #78db43
- Analogous: #5943db, #db43c4
- Triadic: #dba643, #43dba6
- Split-complementary: #c4db43, #43db59
- Tetradic: #db5943, #78db43, #43c4db

## Colors that go with #a643db

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 #a643db 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 #a643db: 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 #a643db: 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 #a643db: 3 real palettes, including Hasbro's brand system and Linkedin's brand system, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #a643db in 3 real palettes, including Obsidian's brand system and Loom's brand system, as that palette's text colour. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Loom (https://brandsweets.com/colors/brands/loom-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com). — https://brandsweets.com/colors/taupe
- **Dark Cyan** #008b8b [harmony, pool: triadic] — Dark Cyan completes a triad with #a643db — 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 #a643db: 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 #a643db'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

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

- On white (#ffffff): 4.72:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8423b8 (7.21:1)
- On black (#000000): 4.45:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #a847dc (4.6:1); AA: background → #fafafa (4.52:1); AAA: text → #c07ae6 (7.17:1)

## 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/a643db-b99fc1-b9cb62-2d1f2c-ebe9f1?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: "#a643db" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.