# #905b9f

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

## Values

- Hex: `#905b9f`
- RGB: rgb(144, 91, 159)
- HSL: hsl(287, 27%, 49%)
- OKLCH: oklch(0.556 0.118 318.6)
- Relative luminance: 0.1591
- Nearest named color: Bermuda Onion (#9d5a8f, Δ 3.422) — https://brandsweets.com/colors/bermuda-onion
- Moods: cool, muted
- Page: https://brandsweets.com/colors/905b9f

## Tints & shades

- Tints (toward white): #9c6aa9, #a67ab3, #b18abc, #bc9bc5, #c7abcf, #cfb8d6, #dac8df, #e5d8e9, #f0e8f2, #fbf9fb
- Shades (toward black): #845492, #764a82, #6a4375, #5b3a64, #4f3257, #412947, #35223a, #26182a, #1a111d, #0c070d

## Harmonies

- Complementary: #6a9f5b
- Analogous: #6e5b9f, #9f5b8c
- Triadic: #9f905b, #5b9f90
- Split-complementary: #8c9f5b, #5b9f6e
- Tetradic: #9f6e5b, #6a9f5b, #5b8c9f

## Colors that go with #905b9f

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #905b9f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Campus (https://brandsweets.com/palettes/friendly#campus), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #905b9f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Marvel's brand system and Plaid's brand system put Midnight Blue beside #905b9f, as the supporting colour. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Campus and Graphite put Orange beside #905b9f, as the accent. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Graphite (https://brandsweets.com/palettes/technical#graphite), Sunset Boulevard (https://brandsweets.com/palettes/warm#sunset-boulevard), Rippling (https://brandsweets.com/colors/brands/rippling-com). — https://brandsweets.com/colors/orange
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #905b9f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic). — https://brandsweets.com/colors/teal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #905b9f: 3 real palettes, including Linkedin's brand system and Campus, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Campus (https://brandsweets.com/palettes/friendly#campus), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #905b9f in 3 real palettes, including Superhuman's brand system and Dusk, as the lead colour. Seen in: Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Dusk (https://brandsweets.com/palettes/cool#dusk), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/taupe
- **Tomato** #ff6347 [pool] — 3 real palettes, including Sunset Boulevard and GitLab's brand system put Tomato beside #905b9f, as the lead colour. Seen in: Sunset Boulevard (https://brandsweets.com/palettes/warm#sunset-boulevard), GitLab (https://brandsweets.com/colors/brands/gitlab), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 5.02:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #73497e (7.04:1)
- On black (#000000): 4.18:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9764a6 (4.69:1); AA: background → #f5f5f5 (4.6:1); AAA: text → #b18abc (7.23:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/905b9f-bd9fc1-abcb62-2d1f2a-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: "#905b9f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.