# #3f266e

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

## Values

- Hex: `#3f266e`
- RGB: rgb(63, 38, 110)
- HSL: hsl(261, 49%, 29%)
- OKLCH: oklch(0.342 0.119 295.4)
- Relative luminance: 0.0357
- Nearest named color: Fading Horizon (#442266, Δ 1.88) — https://brandsweets.com/colors/fading-horizon
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/3f266e

## Tints & shades

- Tints (toward white): #4e2f89, #5e38a3, #6d41be, #815cc7, #9676d0, #a78dd8, #bca8e1, #d0c2ea, #e5ddf3, #f9f7fc
- Shades (toward black): #3b2367, #341f5b, #301d54, #291948, #251641, #1e1235, #1a102e, #140c22, #0f091b, #09050f

## Harmonies

- Complementary: #556e26
- Analogous: #26316e, #63266e
- Triadic: #6e3f26, #266e3f
- Split-complementary: #6e6326, #316e26
- Tetradic: #6e2631, #556e26, #266e63

## Colors that go with #3f266e

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 #3f266e: 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), Hinge (https://brandsweets.com/colors/brands/hinge-co), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #3f266e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Discord (https://brandsweets.com/colors/brands/discord), Nokia (https://brandsweets.com/colors/brands/nokia-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/royalblue
- **Blue** #0000ff [pool] — 4 real palettes, including Alaska Airlines's brand system and Sketch's brand system put Blue beside #3f266e, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #3f266e in 8 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), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3f266e: 13 real palettes, including Panasonic's brand system and Hasbro's brand system, as the accent. Seen in: Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com). — https://brandsweets.com/colors/denim
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #3f266e in 5 real palettes, including Tide's brand system and Tumblr's brand system, as the accent. Seen in: Tide (https://brandsweets.com/colors/brands/tide-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), NASA (https://brandsweets.com/colors/brands/nasa-gov), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/orangered
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #3f266e: 6 real palettes, including Frost & Ember and Glacier, as the supporting colour. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Glacier (https://brandsweets.com/palettes/cool#glacier), Macaron (https://brandsweets.com/palettes/light#macaron), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/powderblue
- **Sky Blue** #87ceeb [pool] — Sky Blue is paired with #3f266e in 4 real palettes, including Harbour and Boeing's brand system, as the supporting colour. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Boeing (https://brandsweets.com/colors/brands/boeing-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/skyblue

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

- On white (#ffffff): 12.25:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.71:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8763ca (4.67:1); AA: background → #9e9e9e (4.57:1); AAA: text → #a489d7 (7.14:1); AAA: background → #c4c4c4 (7.03:1)

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- 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/3f266e-af9cc4-dfcb4e-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: "#3f266e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.