# #3f0958

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

## Values

- Hex: `#3f0958`
- RGB: rgb(63, 9, 88)
- HSL: hsl(281, 81%, 19%)
- OKLCH: oklch(0.287 0.131 311.5)
- Relative luminance: 0.0196
- Nearest named color: Clairvoyant (#480656, Δ 2.156) — https://brandsweets.com/colors/clairvoyant
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/3f0958

## Tints & shades

- Tints (toward white): #590d7d, #7411a2, #8e15c6, #a71de7, #b642eb, #c262ef, #d087f2, #dfacf6, #edd1fa, #fbf6fe
- Shades (toward black): #3c0953, #35084a, #320745, #2b063c, #280637, #21052e, #1e042a, #170320, #14031c, #0d0212

## Harmonies

- Complementary: #225809
- Analogous: #180958, #580949
- Triadic: #583f09, #09583f
- Split-complementary: #495809, #095818
- Tetradic: #581809, #225809, #094958

## Colors that go with #3f0958

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 #3f0958: softer than #000 and cool enough to feel like part of the same palette. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #3f0958: 4 real palettes, including SoFi's brand system and Open House, as the supporting colour. Seen in: SoFi (https://brandsweets.com/colors/brands/sofi-com), Open House (https://brandsweets.com/palettes/clean#open-house), Coastal (https://brandsweets.com/palettes/cool#coastal), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3f0958: 4 real palettes, including Blue Mono and MLB's brand system, as the lead colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), MLB (https://brandsweets.com/colors/brands/mlb-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #3f0958 in 4 real palettes, including Casper Sleep's brand system and Marvel's brand system, as the lead colour. Seen in: Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3f0958: 13 real palettes, including Discover's brand system and Heinz's brand system, as the supporting colour. Seen in: Discover (https://brandsweets.com/colors/brands/discover-com), Heinz (https://brandsweets.com/colors/brands/heinz-com), Open House (https://brandsweets.com/palettes/clean#open-house), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com). — https://brandsweets.com/colors/denim
- **Light Pink** #ffb6c1 [pool] — Light Pink shows up next to #3f0958 in 4 real palettes, including Railway's brand system and Sorbet, as the supporting colour. Seen in: Railway (https://brandsweets.com/colors/brands/railway-app), Sorbet (https://brandsweets.com/palettes/light#sorbet), Pastel Pop (https://brandsweets.com/palettes/playful#pastel-pop), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/lightpink
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #3f0958: 5 real palettes, including First Snow and Opera's brand system, as the accent. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Opera (https://brandsweets.com/colors/brands/opera-com), Sorbet (https://brandsweets.com/palettes/light#sorbet), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/powderblue
- **Forest Green** #228b22 [harmony: complementary] — Forest Green sits directly opposite #3f0958 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/forestgreen

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

- On white (#ffffff): 15.09:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #b034ea (4.53:1); AA: background → #8f8f8f (4.67:1); AAA: text → #c770f0 (7:1); AAA: background → #b3b3b3 (7.2:1)

## Brands using this color

- **MetaMask** — secondary #3d065f (Δ 1.449) — https://brandsweets.com/colors/brands/metamask-io

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3f0958-ba9fc1-b6cb62-2d1f2c-ebe9f1?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: "#3f0958" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.