# #3d1da5

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

## Values

- Hex: `#3d1da5`
- RGB: rgb(61, 29, 165)
- HSL: hsl(254, 70%, 38%)
- OKLCH: oklch(0.381 0.197 282.5)
- Relative luminance: 0.0459
- Nearest named color: Depths of Night (#2c319b, Δ 4.133) — https://brandsweets.com/colors/depths-of-night
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3d1da5

## Tints & shades

- Tints (toward white): #4622bf, #5026d9, #6540dd, #7a5ae2, #8f74e7, #a48eeb, #b9a8f0, #cec2f4, #e3dcf9, #f8f6fd
- Shades (toward black): #381b98, #321886, #2d1579, #261268, #22105b, #1d0e4e, #160b3d, #120830, #0b051e, #060311

## Harmonies

- Complementary: #85a51d
- Analogous: #1d41a5, #811da5
- Triadic: #a53d1d, #1da53d
- Split-complementary: #a5811d, #41a51d
- Tetradic: #a51d41, #85a51d, #1da581

## Colors that go with #3d1da5

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 #3d1da5'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 #3d1da5, 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 #3d1da5 in 6 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
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #3d1da5: 4 real palettes, including Datadog's brand system and 3M's brand system, as the accent. Seen in: Datadog (https://brandsweets.com/colors/brands/datadoghq-com), 3M (https://brandsweets.com/colors/brands/3m-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/firebrick
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Blue Mono and Kraken's brand system put Midnight Blue beside #3d1da5, as that palette's text colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Kraken (https://brandsweets.com/colors/brands/kraken-com), 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 #3d1da5 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 #3d1da5: 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #3d1da5: 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): 10.95:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.92:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7d5fe3 (4.62:1); AA: background → #a8a8a8 (4.61:1); AAA: text → #9d86ea (7.03:1); AAA: background → #cfcfcf (7.03:1)

## 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/3d1da5-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: "#3d1da5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.