# #a540c9

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

## Values

- Hex: `#a540c9`
- RGB: rgb(165, 64, 201)
- HSL: hsl(284, 56%, 52%)
- OKLCH: oklch(0.568 0.213 315.8)
- Relative luminance: 0.1588
- Nearest named color: Magenta Affair (#aa44dd, Δ 3.192) — https://brandsweets.com/colors/magenta-affair
- Moods: cool, modern
- Page: https://brandsweets.com/colors/a540c9

## Tints & shades

- Tints (toward white): #ae54cf, #b664d3, #bf78d9, #c688dd, #d09ce3, #d9afe9, #e1bfed, #ead3f3, #f2e3f7, #fbf7fd
- Shades (toward black): #9735bb, #872fa7, #7a2b97, #6a2583, #5a1f6f, #4a1a5b, #3a1448, #2d1038, #1d0a24, #0d0410

## Harmonies

- Complementary: #65c940
- Analogous: #6040c9, #c940a9
- Triadic: #c9a540, #40c9a5
- Split-complementary: #a9c940, #40c960
- Tetradic: #c96040, #65c940, #40a9c9

## Colors that go with #a540c9

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 #a540c9 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 #a540c9: 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 #a540c9: 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 #a540c9: 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
- **Taupe** #483c32 [pool] — Taupe is paired with #a540c9 in 3 real palettes, including Obsidian's brand system and Superhuman's brand system, as that palette's text colour. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Loom (https://brandsweets.com/colors/brands/loom-com). — https://brandsweets.com/colors/taupe
- **Dark Cyan** #008b8b [harmony, pool: triadic] — Dark Cyan completes a triad with #a540c9 — 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 #a540c9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Light Sea Green** #20b2aa [pool] — Light Sea Green shows up next to #a540c9 in two real palettes: Taco Bell's brand system and Circuit, as the accent. Seen in: Taco Bell (https://brandsweets.com/colors/brands/tacobell-com), Circuit (https://brandsweets.com/palettes/technical#circuit). — https://brandsweets.com/colors/lightseagreen

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

- On white (#ffffff): 5.03:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #872fa7 (7.01:1)
- On black (#000000): 4.18:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #aa4ccd (4.62:1); AA: background → #f5f5f5 (4.61:1); AAA: text → #c17cda (7.16:1)

## Fonts for this mood

- 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/a540c9-bc9fc1-b1cb62-2d1f2b-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: "#a540c9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.