# #673f92

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

## Values

- Hex: `#673f92`
- RGB: rgb(103, 63, 146)
- HSL: hsl(269, 40%, 41%)
- OKLCH: oklch(0.455 0.134 303.8)
- Relative luminance: 0.0851
- Nearest named color: Lords of the Night (#664488, Δ 2.197) — https://brandsweets.com/colors/lords-of-the-night
- Moods: cool, modern
- Page: https://brandsweets.com/colors/673f92

## Tints & shades

- Tints (toward white): #7648a8, #8354b6, #9269bf, #a27ec8, #b194d1, #bea6d9, #cebbe2, #ddd1eb, #eae2f3, #faf8fc
- Shades (toward black): #5d3984, #563479, #4b2e6b, #41285d, #3a2352, #301d44, #261736, #1c1127, #140c1d, #0a060e

## Harmonies

- Complementary: #6a923f
- Analogous: #3f4092, #913f92
- Triadic: #92673f, #3f9267
- Split-complementary: #92913f, #40923f
- Tetradic: #923f40, #6a923f, #3f9291

## Colors that go with #673f92

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 #673f92: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Harbour (https://brandsweets.com/palettes/cool#harbour), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including Zillow's brand system and Pixar's brand system put Blue beside #673f92, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #673f92 in 7 real palettes, including Wells Fargo's brand system and Walgreens's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #673f92: 7 real palettes, including 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), HP (https://brandsweets.com/colors/brands/hp-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 10 real palettes, including Kraken's brand system and First Snow put Midnight Blue beside #673f92, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), FIFA (https://brandsweets.com/colors/brands/fifa-com), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #673f92 in 6 real palettes, including Wayfair's brand system and Fivetran blue's brand system, as the supporting colour. Seen in: Wayfair (https://brandsweets.com/colors/brands/wayfair-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Stripe (https://brandsweets.com/colors/brands/stripe), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #673f92: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/seagreen
- **Taupe** #483c32 [pool] — Taupe is paired with #673f92 in 4 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Dusk (https://brandsweets.com/palettes/cool#dusk), Nikon (https://brandsweets.com/colors/brands/nikon-com). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 7.77:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.7:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8d62bc (4.61:1); AA: background → #c7c7c7 (4.6:1); AAA: text → #aa89cd (7.17:1); AAA: background → #f5f5f5 (7.13:1)

## Brands using this color

- **Ledger** — secondary #6a3794 (Δ 1.876) — https://brandsweets.com/colors/brands/ledger-com

## 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/673f92-b49cc4-cbcb62-2c1f2d-e9e9f1?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: "#673f92" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.