# #641dcd

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

## Values

- Hex: `#641dcd`
- RGB: rgb(100, 29, 205)
- HSL: hsl(264, 75%, 46%)
- OKLCH: oklch(0.461 0.237 292.1)
- Relative luminance: 0.08
- Nearest named color: Blurple (#5539cc, Δ 4.367) — https://brandsweets.com/colors/blurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/641dcd

## Tints & shades

- Tints (toward white): #6f24e0, #7e3be3, #9055e7, #9e6cea, #ad82ed, #bc98f0, #caaff4, #dcc9f7, #eae0fb, #f9f6fe
- Shades (toward black): #5b1bbb, #5218aa, #481593, #3f1281, #361070, #2e0d5e, #250b4c, #1a0836, #110524, #090312

## Harmonies

- Complementary: #87cd1d
- Analogous: #1d2fcd, #bc1dcd
- Triadic: #cd641d, #1dcd64
- Split-complementary: #cdbc1d, #2fcd1d
- Tetradic: #cd1d2f, #87cd1d, #1dcdbc

## Colors that go with #641dcd

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 #641dcd: softer than #000 and cool enough to feel like part of the same palette. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #641dcd: 4 real palettes, including Zillow's brand system and Unilever's brand system, as the supporting colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #641dcd: 5 real palettes, including Linkedin's brand system and Unilever's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Slack (https://brandsweets.com/colors/brands/slack-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #641dcd's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/royalblue
- **Tomato** #ff6347 [pool] — 4 real palettes, including GitLab's brand system and Etsy's brand system put Tomato beside #641dcd, as the lead colour. Seen in: GitLab (https://brandsweets.com/colors/brands/gitlab), Etsy (https://brandsweets.com/colors/brands/etsy-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), FedEx (https://brandsweets.com/colors/brands/fedex-com). — https://brandsweets.com/colors/tomato
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #641dcd 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/olive
- **Crimson** #dc143c [pool] — Crimson is paired with #641dcd in 3 real palettes, including Gemstone and Wells Fargo's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Kraken's brand system and Purina Pro Plan's brand system put Midnight Blue beside #641dcd, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 8.08:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.6:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9055e7 (4.64:1); AA: background → #c2c2c2 (4.54:1); AAA: text → #ad82ed (7.19:1); AAA: background → #f0f0f0 (7.09:1)

## 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/641dcd-b19cc4-dfd34e-2b1f2d-e9eaf1?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: "#641dcd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.