# #671d96

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

## Values

- Hex: `#671d96`
- RGB: rgb(103, 29, 150)
- HSL: hsl(277, 68%, 35%)
- OKLCH: oklch(0.414 0.184 307.7)
- Relative luminance: 0.0596
- Nearest named color: Extraviolet (#661188, Δ 2.78) — https://brandsweets.com/colors/extraviolet
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/671d96

## Tints & shades

- Tints (toward white): #7921b0, #8e27ce, #9c3ad9, #a954de, #b872e4, #c58be9, #d2a5ee, #dfbff3, #eeddf8, #fbf6fd
- Shades (toward black): #5f1a89, #56187c, #4d156f, #441363, #3b1056, #2f0d45, #260b38, #1e082b, #15061e, #0c0311

## Harmonies

- Complementary: #4b961d
- Analogous: #2b1d96, #961d88
- Triadic: #96671d, #1d9667
- Split-complementary: #88961d, #1d962b
- Tetradic: #962b1d, #4b961d, #1d8896

## Colors that go with #671d96

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

- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #671d96 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 #671d96: 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), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #671d96 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), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Tomato** #ff6347 [pool] — 3 real palettes, including FedEx's brand system and dbt Labs's brand system put Tomato beside #671d96, as the supporting colour. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), GitLab (https://brandsweets.com/colors/brands/gitlab). — https://brandsweets.com/colors/tomato
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #671d96 — 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
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #671d96: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #671d96 in two real palettes: Taco Bell's brand system and Twitch's brand system, as the supporting colour. Seen in: Taco Bell (https://brandsweets.com/colors/brands/tacobell-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv). — https://brandsweets.com/colors/blueviolet
- **Denim** #1560bd [pool] — Designers have shipped Denim with #671d96: two real palettes: Slack's brand system and Hinge's brand system, as the lead colour. Seen in: Slack (https://brandsweets.com/colors/brands/slack-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 9.58:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.19:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #a54bdd (4.65:1); AA: background → #b3b3b3 (4.57:1); AAA: text → #bc7ae6 (7.06:1); AAA: background → #dedede (7.12:1)

## 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/671d96-b99cc4-bdcb62-2d1f2c-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: "#671d96" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.