# #3d197b

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

## Values

- Hex: `#3d197b`
- RGB: rgb(61, 25, 123)
- HSL: hsl(262, 66%, 29%)
- OKLCH: oklch(0.333 0.152 292.9)
- Relative luminance: 0.0312
- Nearest named color: Explorer of the Galaxies (#3a1f76, Δ 1.383) — https://brandsweets.com/colors/explorer-of-the-galaxies
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/3d197b

## Tints & shades

- Tints (toward white): #4c1f98, #5a25b6, #692bd4, #7e49da, #9367e0, #a580e5, #ba9eeb, #cfbbf1, #e4d9f7, #f9f7fd
- Shades (toward black): #391772, #321566, #2e135d, #281050, #240f48, #1d0c3b, #190a33, #130826, #0f061e, #080311

## Harmonies

- Complementary: #577b19
- Analogous: #19267b, #6e197b
- Triadic: #7b3d19, #197b3d
- Split-complementary: #7b6e19, #267b19
- Tetradic: #7b1926, #577b19, #197b6e

## Colors that go with #3d197b

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 #3d197b: 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), CeraVe (https://brandsweets.com/colors/brands/cerave-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #3d197b'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), Confluent (https://brandsweets.com/colors/brands/confluent-io), Nivea (https://brandsweets.com/colors/brands/nivea-com), Nokia (https://brandsweets.com/colors/brands/nokia-com). — https://brandsweets.com/colors/royalblue
- **Blue** #0000ff [pool] — 4 real palettes, including Procter & Gamble's brand system and Zillow's brand system put Blue beside #3d197b, as the supporting colour. Seen in: Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Sketch (https://brandsweets.com/colors/brands/sketch-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #3d197b in 5 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), Pepsi (https://brandsweets.com/colors/brands/pepsi-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3d197b: 6 real palettes, including Bank of America's brand system and Panasonic's brand system, as the accent. Seen in: Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/denim
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #3d197b: 6 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
- **Taupe** #483c32 [pool] — Taupe is paired with #3d197b in 4 real palettes, including Gillette's brand system and Boeing's brand system, as the lead colour. Seen in: Gillette (https://brandsweets.com/colors/brands/gillette-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), American Eagle (https://brandsweets.com/colors/brands/ae-com), Datadog (https://brandsweets.com/colors/brands/datadoghq-com). — https://brandsweets.com/colors/taupe
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #3d197b 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

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

- On white (#ffffff): 12.94:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.62:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8a5add (4.59:1); AA: background → #999999 (4.54:1); AAA: text → #a884e6 (7.11:1); AAA: background → #bfbfbf (7.03:1)

## 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/3d197b-af9cc4-dfce4e-2a1f2d-e9eaf1?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: "#3d197b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.