# #643474

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

## Values

- Hex: `#643474`
- RGB: rgb(100, 52, 116)
- HSL: hsl(285, 38%, 33%)
- OKLCH: oklch(0.414 0.115 317.1)
- Relative luminance: 0.0643
- Nearest named color: Galactic Grapevine (#6b327b, Δ 1.837) — https://brandsweets.com/colors/galactic-grapevine
- Moods: cool, modern
- Page: https://brandsweets.com/colors/643474

## Tints & shades

- Tints (toward white): #793f8d, #8c49a2, #9e5ab5, #aa6fbe, #b987c9, #c59cd3, #d4b5de, #e0cae7, #eee3f2, #fbf8fc
- Shades (toward black): #5b2f6a, #522b5f, #492654, #40214a, #3a1e43, #311938, #27152e, #1e1023, #150b19, #0c060e

## Harmonies

- Complementary: #447434
- Analogous: #443474, #743464
- Triadic: #746434, #347464
- Split-complementary: #647434, #347444
- Tetradic: #744434, #447434, #346474

## Colors that go with #643474

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 #643474 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/seagreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #643474: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #643474 in 4 real palettes, including Lenovo's brand system and Wells Fargo's brand system, as the supporting colour. Seen in: Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #643474: 5 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), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Taupe** #483c32 [pool] — Taupe is paired with #643474 in 4 real palettes, including Datadog's brand system and Dusk, as that palette's text colour. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Dusk (https://brandsweets.com/palettes/cool#dusk), Blush (https://brandsweets.com/palettes/light#blush), Superhuman (https://brandsweets.com/colors/brands/superhuman-com). — https://brandsweets.com/colors/taupe
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #643474: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/teal
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #643474 in 3 real palettes, including Wayfair's brand system and Console Light, as the supporting colour. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Console Light (https://brandsweets.com/palettes/technical#console-light), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/royalblue
- **Tomato** #ff6347 [pool] — 3 real palettes, including Golden Hour and Harley-Davidson's brand system put Tomato beside #643474, as the supporting colour. Seen in: Golden Hour (https://brandsweets.com/palettes/warm#golden-hour), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com), FedEx (https://brandsweets.com/colors/brands/fedex-com). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 9.19:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.29:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9e5ab5 (4.58:1); AA: background → #b8b8b8 (4.63:1); AAA: text → #b784c8 (7.15:1); AAA: background → #e3e3e3 (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/643474-bc9fc1-afcb62-2d1f2b-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: "#643474" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.