# #3d1390

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

## Values

- Hex: `#3d1390`
- RGB: rgb(61, 19, 144)
- HSL: hsl(260, 77%, 32%)
- OKLCH: oklch(0.349 0.181 287.9)
- Relative luminance: 0.0347
- Nearest named color: Galactic Civilization (#442288, Δ 3.042) — https://brandsweets.com/colors/galactic-civilization
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3d1390

## Tints & shades

- Tints (toward white): #4a17b0, #551acb, #6526e3, #7841e6, #8f61ea, #a581ef, #b99cf2, #cfbbf6, #e2d6fa, #f9f6fe
- Shades (toward black): #371183, #310f75, #2d0e6c, #280c5f, #220b51, #1c0944, #170736, #13062d, #0d0420, #080212

## Harmonies

- Complementary: #679013
- Analogous: #132890, #7b1390
- Triadic: #903d13, #13903d
- Split-complementary: #907b13, #289013
- Tetradic: #901328, #679013, #13907b

## Colors that go with #3d1390

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

- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #3d1390's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. 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), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3d1390: 4 real palettes, including Tide's brand system and Purina Pro Plan's brand system, as the lead colour. Seen in: Tide (https://brandsweets.com/colors/brands/tide-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #3d1390 in 5 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), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3d1390: 5 real palettes, including Bank of America's brand system and Warbyparker's brand system, as the accent. Seen in: Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Slack (https://brandsweets.com/colors/brands/slack-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/denim
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #3d1390: 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 #3d1390 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 #3d1390: 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
- **Red** #ff0000 [pool] — Red is paired with #3d1390 in 3 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), Hyundai (https://brandsweets.com/colors/brands/hyundaiusa-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 12.39:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.69:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8858e9 (4.62:1); AA: background → #9c9c9c (4.51:1); AAA: text → #a885ef (7.27:1); AAA: background → #c4c4c4 (7.11:1)

## Brands using this color

- **Peacock** — secondary #400094 (Δ 1.596) — https://brandsweets.com/colors/brands/peacocktv-com
- **dbt Labs** — accent #3d189a (Δ 1.92) — 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/3d1390-ae9cc4-dfc94e-2a1f2d-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: "#3d1390" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.