# #391d96

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

## Values

- Hex: `#391d96`
- RGB: rgb(57, 29, 150)
- HSL: hsl(254, 68%, 35%)
- OKLCH: oklch(0.361 0.18 283.3)
- Relative luminance: 0.0395
- Nearest named color: Galactic Civilization (#442288, Δ 3.4) — https://brandsweets.com/colors/galactic-civilization
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/391d96

## Tints & shades

- Tints (toward white): #4321b0, #4e27ce, #5f3ad9, #7454de, #8c72e4, #a18be9, #b6a5ee, #cbbff3, #e3ddf8, #f8f6fd
- Shades (toward black): #341a89, #2f187c, #2a156f, #251363, #211056, #1a0d45, #150b38, #10082b, #0b061e, #070311

## Harmonies

- Complementary: #7a961d
- Analogous: #1d3d96, #761d96
- Triadic: #96391d, #1d9639
- Split-complementary: #96761d, #3d961d
- Tetradic: #961d3d, #7a961d, #1d9676

## Colors that go with #391d96

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 #391d96's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com). — https://brandsweets.com/colors/denim
- **Blue** #0000ff [pool] — 4 real palettes, including Procter & Gamble's brand system and Zillow's brand system put Blue beside #391d96, as the supporting colour. Seen in: Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #391d96 in 7 real palettes, including Pepsi's brand system and Casper Sleep's brand system, as the supporting colour. Seen in: Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #391d96 in 4 real palettes, including Twitch's brand system and Walgreens's brand system, as the accent. Seen in: Twitch (https://brandsweets.com/colors/brands/twitch-tv), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), 3M (https://brandsweets.com/colors/brands/3m-com), Hyundai (https://brandsweets.com/colors/brands/hyundaiusa-com). — https://brandsweets.com/colors/red
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #391d96 in 7 real palettes, including Discord's brand system and Nivea's brand system, as the lead colour. Seen in: Discord (https://brandsweets.com/colors/brands/discord), Nivea (https://brandsweets.com/colors/brands/nivea-com), 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 #391d96: 5 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 #391d96 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 #391d96: 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): 11.73:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.79:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7e60e1 (4.65:1); AA: background → #a1a1a1 (4.54:1); AAA: text → #9e87e8 (7.08:1); AAA: background → #c9c9c9 (7.08:1)

## Brands using this color

- **dbt Labs** — accent #3d189a (Δ 1.057) — https://brandsweets.com/colors/brands/getdbt-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/391d96-aa9cc4-dfbb4e-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: "#391d96" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.