# #4b2371

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

## Values

- Hex: `#4b2371`
- RGB: rgb(75, 35, 113)
- HSL: hsl(271, 53%, 29%)
- OKLCH: oklch(0.354 0.13 304)
- Relative luminance: 0.0389
- Nearest named color: Fading Horizon (#442266, Δ 2.35) — https://brandsweets.com/colors/fading-horizon
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/4b2371

## Tints & shades

- Tints (toward white): #5d2b8c, #7034a8, #823cc3, #9357cb, #a573d4, #b48adb, #c5a5e3, #d7c1ec, #e8dcf4, #faf7fd
- Shades (toward black): #462069, #3e1d5e, #391a56, #31174a, #2c1442, #241137, #1f0e2f, #170b23, #12081b, #0a0510

## Harmonies

- Complementary: #497123
- Analogous: #242371, #712370
- Triadic: #714b23, #23714b
- Split-complementary: #707123, #237124
- Tetradic: #712423, #497123, #237071

## Colors that go with #4b2371

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 #4b2371'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), Nokia (https://brandsweets.com/colors/brands/nokia-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/royalblue
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #4b2371: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Tumblr (https://brandsweets.com/colors/brands/tumblr-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #4b2371 in 6 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), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Lenovo (https://brandsweets.com/colors/brands/lenovo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #4b2371: 8 real palettes, including Hinge's brand system and Slack's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Slack (https://brandsweets.com/colors/brands/slack-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #4b2371 in 4 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 #4b2371: 4 real palettes, including Frost & Ember and Macaron, as the supporting colour. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Macaron (https://brandsweets.com/palettes/light#macaron), Glacier (https://brandsweets.com/palettes/cool#glacier), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/powderblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #4b2371: 7 real palettes, including FedEx's brand system and Plaid's brand system, as the accent. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/steelblue
- **Taupe** #483c32 [pool] — Taupe is paired with #4b2371 in 4 real palettes, including Gillette's brand system and Datadog's brand system, as the lead colour. Seen in: Gillette (https://brandsweets.com/colors/brands/gillette-com), Datadog (https://brandsweets.com/colors/brands/datadoghq-com), American Eagle (https://brandsweets.com/colors/brands/ae-com), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 11.81:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.78:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #965bcd (4.67:1); AA: background → #a1a1a1 (4.57:1); AAA: text → #af82d9 (7.02:1); AAA: background → #c9c9c9 (7.13:1)

## 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/4b2371-b59cc4-c7cb62-2c1f2d-eae9f1?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: "#4b2371" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.