# #3f1ea4

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

## Values

- Hex: `#3f1ea4`
- RGB: rgb(63, 30, 164)
- HSL: hsl(255, 69%, 38%)
- OKLCH: oklch(0.383 0.195 283.5)
- Relative luminance: 0.0467
- Nearest named color: Bluebell (#333399, Δ 4.158) — https://brandsweets.com/colors/bluebell
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3f1ea4

## Tints & shades

- Tints (toward white): #4923be, #5428d7, #6841dc, #7d5be1, #9175e6, #a68fea, #baa9ef, #cfc3f4, #e4ddf9, #f8f6fd
- Shades (toward black): #3a1c97, #341986, #2f1679, #281367, #23115a, #1e0e4e, #170b3c, #12092f, #0c061e, #070311

## Harmonies

- Complementary: #82a41e
- Analogous: #1e3fa4, #821ea4
- Triadic: #a43f1e, #1ea43f
- Split-complementary: #a4821e, #3fa41e
- Tetradic: #a41e3f, #82a41e, #1ea482

## Colors that go with #3f1ea4

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

- **Denim** #1560bd [harmony, pool: analogous] — Denim is #3f1ea4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Intel (https://brandsweets.com/colors/brands/intel-com), Slack (https://brandsweets.com/colors/brands/slack-com). — https://brandsweets.com/colors/denim
- **Blue** #0000ff [pool] — 5 real palettes, including Zillow's brand system and Procter & Gamble's brand system put Blue beside #3f1ea4, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #3f1ea4 in 5 real palettes, including Pepsi's brand system and Walgreens's brand system, as the supporting colour. Seen in: Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Behance (https://brandsweets.com/colors/brands/behance-net), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Kraken's brand system and Blue Mono put Midnight Blue beside #3f1ea4, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Air France (https://brandsweets.com/colors/brands/airfrance-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #3f1ea4 in 7 real palettes, including Nivea's brand system and Discord's brand system, as the supporting colour. Seen in: Nivea (https://brandsweets.com/colors/brands/nivea-com), Discord (https://brandsweets.com/colors/brands/discord), Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #3f1ea4: 4 real palettes, including FedEx's brand system and Hershey's's brand system, as the accent. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #3f1ea4 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 #3f1ea4: 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), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 10.86:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.93:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8060e2 (4.69:1); AA: background → #a8a8a8 (4.57:1); AAA: text → #9f86e9 (7.06:1); AAA: background → #d1d1d1 (7.11:1)

## 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/3f1ea4-ab9cc4-dfbd4e-291f2d-e9ebf1?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: "#3f1ea4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.