# #400d4e

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

## Values

- Hex: `#400d4e`
- RGB: rgb(64, 13, 78)
- HSL: hsl(287, 71%, 18%)
- OKLCH: oklch(0.283 0.117 317.8)
- Relative luminance: 0.0193
- Nearest named color: Clairvoyant (#480656, Δ 2.302) — https://brandsweets.com/colors/clairvoyant
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/400d4e

## Tints & shades

- Tints (toward white): #5d1371, #7a1994, #961fb7, #b325da, #bf48e0, #cb6be6, #d78eec, #e4b1f2, #f0d3f8, #fcf6fe
- Shades (toward black): #3d0d4a, #360b41, #320a3d, #2b0934, #270830, #24072c, #1d0623, #19051f, #120416, #0e0311

## Harmonies

- Complementary: #1b4e0d
- Analogous: #200d4e, #4e0d3c
- Triadic: #4e400d, #0d4e40
- Split-complementary: #3c4e0d, #0d4e20
- Tetradic: #4e200d, #1b4e0d, #0d3c4e

## Colors that go with #400d4e

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 #400d4e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Volkswagen (https://brandsweets.com/colors/brands/vw-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 7 real palettes, including Sketch's brand system and Tim Hortons's brand system put Blue beside #400d4e, as the accent. Seen in: Sketch (https://brandsweets.com/colors/brands/sketch-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Penpot (https://brandsweets.com/colors/brands/penpot-app). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #400d4e: 5 real palettes, including SoFi's brand system and Open House, as the supporting colour. Seen in: SoFi (https://brandsweets.com/colors/brands/sofi-com), Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #400d4e: 5 real palettes, including Blue Mono and Fintech Trust, as the lead colour. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), MLB (https://brandsweets.com/colors/brands/mlb-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #400d4e in 10 real palettes, including Tim Hortons's brand system and Marvel's brand system, as the supporting colour. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Pinterest (https://brandsweets.com/colors/brands/pinterest-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #400d4e in 4 real palettes, including 7-Eleven's brand system and Cohere's brand system, as the supporting colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Cohere (https://brandsweets.com/colors/brands/cohere-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal). — https://brandsweets.com/colors/darkolivegreen
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #400d4e: 4 real palettes, including Kraken's brand system and Vimeo's brand system, as the accent. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #400d4e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/seagreen

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

- On white (#ffffff): 15.16:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #b732dc (4.5:1); AA: background → #8c8c8c (4.51:1); AAA: text → #cd6fe7 (7.02:1); AAA: background → #b3b3b3 (7.23:1)

## 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/400d4e-bd9fc1-abcb62-2d1f2a-ece9f1?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: "#400d4e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.