# #643285

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

## Values

- Hex: `#643285`
- RGB: rgb(100, 50, 133)
- HSL: hsl(276, 45%, 36%)
- OKLCH: oklch(0.422 0.138 309.5)
- Relative luminance: 0.0668
- Nearest named color: Galactic Grapevine (#6b327b, Δ 2.242) — https://brandsweets.com/colors/galactic-grapevine
- Moods: cool, modern
- Page: https://brandsweets.com/colors/643285

## Tints & shades

- Tints (toward white): #753b9b, #8543b1, #9759c0, #a56fc8, #b285d1, #c09bd9, #ceb1e2, #dfcbeb, #ece1f4, #faf8fc
- Shades (toward black): #5c2e7a, #532a6f, #482460, #402055, #381c4a, #2f183f, #271434, #1c0e25, #130a1a, #0b060f

## Harmonies

- Complementary: #548532
- Analogous: #3b3285, #85327d
- Triadic: #856432, #328564
- Split-complementary: #7d8532, #32853b
- Tetradic: #853b32, #548532, #327d85

## Colors that go with #643285

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 #643285: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/charcoal
- **Tomato** #ff6347 [pool] — 4 real palettes, including FedEx's brand system and Golden Hour put Tomato beside #643285, as the supporting colour. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), Golden Hour (https://brandsweets.com/palettes/warm#golden-hour), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com). — https://brandsweets.com/colors/tomato
- **Dark Olive Green** #556b2f [harmony: complementary] — Dark Olive Green sits directly opposite #643285 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/darkolivegreen
- **Crimson** #dc143c [pool] — Crimson is paired with #643285 in 3 real palettes, including Wells Fargo's brand system and Lenovo's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #643285: 3 real palettes, including Hinge's brand system and Slack's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Slack (https://brandsweets.com/colors/brands/slack-com), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Kraken's brand system and First Snow put Midnight Blue beside #643285, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Microsoft (https://brandsweets.com/colors/brands/microsoft-com). — https://brandsweets.com/colors/midnightblue
- **Taupe** #483c32 [pool] — Taupe is paired with #643285 in 3 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/taupe
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #643285 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal

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

- On white (#ffffff): 8.99:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.34:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9759c0 (4.51:1); AA: background → #b8b8b8 (4.53:1); AAA: text → #b285d1 (7.17:1); AAA: background → #e3e3e3 (7:1)

## 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/643285-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: "#643285" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.