# #905bb3

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

## Values

- Hex: `#905bb3`
- RGB: rgb(144, 91, 179)
- HSL: hsl(276, 37%, 53%)
- OKLCH: oklch(0.566 0.141 310.4)
- Relative luminance: 0.1667
- Nearest named color: Lusty Lavender (#8d5eb7, Δ 0.959) — https://brandsweets.com/colors/lusty-lavender
- Moods: cool, modern
- Page: https://brandsweets.com/colors/905bb3

## Tints & shades

- Tints (toward white): #9c6cbc, #a57ac2, #b18cca, #bb9ad0, #c6abd8, #d0b9df, #dccbe7, #e5d9ed, #f1eaf5, #faf8fc
- Shades (toward black): #834da8, #764596, #683d85, #5a3573, #4f2f65, #422754, #341f42, #261631, #190e1f, #0b060e

## Harmonies

- Complementary: #7eb35b
- Analogous: #645bb3, #b35bab
- Triadic: #b3905b, #5bb390
- Split-complementary: #abb35b, #5bb364
- Tetradic: #b3645b, #7eb35b, #5babb3

## Colors that go with #905bb3

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

- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #905bb3 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 Lavender Haze put Midnight Blue beside #905bb3, as the supporting colour. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Plaid (https://brandsweets.com/colors/brands/plaid-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #905bb3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #905bb3: 3 real palettes, including Linkedin's brand system and Peacock, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #905bb3 in 3 real palettes, including Superhuman's brand system and Obsidian's brand system, as the lead colour. Seen in: Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Zed (https://brandsweets.com/colors/brands/zed-dev). — https://brandsweets.com/colors/taupe
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #905bb3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #905bb3 in two real palettes: Klarna US's brand system and ClickUp's brand system, as the accent. Seen in: Klarna US (https://brandsweets.com/colors/brands/klarna-com), ClickUp (https://brandsweets.com/colors/brands/clickup-com). — https://brandsweets.com/colors/blueviolet
- **Crimson** #dc143c [pool] — Crimson is paired with #905bb3 in two real palettes: Marvel's brand system and Wells Fargo's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 4.85:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #734393 (7.11:1)
- On black (#000000): 4.33:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9562b7 (4.71:1); AA: background → #f7f7f7 (4.52:1); AAA: text → #af88c8 (7.18:1)

## 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/905bb3-b99cc4-bfcb62-2d1f2d-eae9f1?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: "#905bb3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.