# #642aa7

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

## Values

- Hex: `#642aa7`
- RGB: rgb(100, 42, 167)
- HSL: hsl(268, 60%, 41%)
- OKLCH: oklch(0.438 0.187 299.6)
- Relative luminance: 0.0716
- Nearest named color: rebeccapurple (#663399, Δ 2.894) — https://brandsweets.com/colors/rebeccapurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/642aa7

## Tints & shades

- Tints (toward white): #7330c0, #803bce, #9054d4, #a06cda, #af85e0, #bd99e5, #cdb1ec, #ddcaf2, #eadef7, #faf7fd
- Shades (toward black): #5b2697, #53238b, #491f7a, #401b6a, #38175e, #2f134e, #250f3d, #1b0b2d, #140821, #0a0410

## Harmonies

- Complementary: #6da72a
- Analogous: #2a2ea7, #a32aa7
- Triadic: #a7642a, #2aa764
- Split-complementary: #a7a32a, #2ea72a
- Tetradic: #a72a2e, #6da72a, #2aa7a3

## Colors that go with #642aa7

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

- **Crimson** #dc143c [pool] — Crimson is paired with #642aa7 in 4 real palettes, including Wells Fargo's brand system and Gemstone, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #642aa7: 4 real palettes, including Slack's brand system and Linkedin's brand system, as the lead colour. Seen in: Slack (https://brandsweets.com/colors/brands/slack-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/denim
- **Tomato** #ff6347 [pool] — 5 real palettes, including FedEx's brand system and GitLab's brand system put Tomato beside #642aa7, as the supporting colour. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), GitLab (https://brandsweets.com/colors/brands/gitlab), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com). — https://brandsweets.com/colors/tomato
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #642aa7 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #642aa7: 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). — https://brandsweets.com/colors/charcoal
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #642aa7, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #642aa7'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), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com). — https://brandsweets.com/colors/royalblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #642aa7 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal

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

- On white (#ffffff): 8.64:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.43:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9258d5 (4.58:1); AA: background → #bdbdbd (4.6:1); AAA: text → #af85e0 (7.25:1); AAA: background → #e8e8e8 (7.05:1)

## Brands using this color

- **Datadog** — primary #632ca6 (Δ 0.387) — https://brandsweets.com/colors/brands/datadoghq-com

## 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/642aa7-b39cc4-dfdc4e-2c1f2d-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: "#642aa7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.