# #642bf3

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

## Values

- Hex: `#642bf3`
- RGB: rgb(100, 43, 243)
- HSL: hsl(257, 89%, 56%)
- OKLCH: oklch(0.51 0.266 284.9)
- Relative luminance: 0.1091
- Nearest named color: Electric Indigo (#6600ff, Δ 2.857) — https://brandsweets.com/colors/electric-indigo
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/642bf3

## Tints & shades

- Tints (toward white): #723ef4, #8051f5, #916af6, #a07df7, #ae90f9, #bca3fa, #cab7fb, #dccffc, #eae2fd, #f8f5fe
- Shades (toward black): #5213f1, #480dde, #3f0bc1, #370aa9, #2f0891, #270778, #1f0660, #160443, #0e032b, #060113

## Harmonies

- Complementary: #baf32b
- Analogous: #2b56f3, #c72bf3
- Triadic: #f3642b, #2bf364
- Split-complementary: #f3c72b, #56f32b
- Tetradic: #f32b56, #baf32b, #2bf3c7

## Colors that go with #642bf3

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 #642bf3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Docker (https://brandsweets.com/colors/brands/docker-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #642bf3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), EA (https://brandsweets.com/colors/brands/ea-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/royalblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #642bf3: 7 real palettes, including NHL's brand system and Zillow's brand system, as the accent. Seen in: NHL (https://brandsweets.com/colors/brands/nhl-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Oreo (https://brandsweets.com/colors/brands/oreo-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #642bf3 in 4 real palettes, including Gemstone and Coinbase's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Coinbase (https://brandsweets.com/colors/brands/coinbase), Toyota (https://brandsweets.com/colors/brands/toyota-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #642bf3: 4 real palettes, including Render's brand system and Kraken's brand system, as the supporting colour. Seen in: Render (https://brandsweets.com/colors/brands/render-com), Kraken (https://brandsweets.com/colors/brands/kraken-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #642bf3: 5 real palettes, including Linkedin's brand system and Pixar's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Dairy Queen (https://brandsweets.com/colors/brands/dairyqueen-com), Chase (https://brandsweets.com/colors/brands/chase-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Kraken's brand system and Discord's brand system put Midnight Blue beside #642bf3, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Discord (https://brandsweets.com/colors/brands/discord), Penpot (https://brandsweets.com/colors/brands/penpot-app), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/midnightblue
- **Red** #ff0000 [pool] — Red is paired with #642bf3 in 4 real palettes, including Twitch's brand system and native Cybersecurity's brand system, as the accent. Seen in: Twitch (https://brandsweets.com/colors/brands/twitch-tv), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), ElevenLabs (https://brandsweets.com/colors/brands/elevenlabs-io). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 6.6:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #5c21f2 (7.11:1)
- On black (#000000): 3.18:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #8356f5 (4.61:1); AA: background → #d6d6d6 (4.54:1); AAA: text → #a382f8 (7.11:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- 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/642bf3-ac9cc4-dfc24e-291f2d-e9ebf1?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: "#642bf3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.