# #604b9b

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

## Values

- Hex: `#604b9b`
- RGB: rgb(96, 75, 155)
- HSL: hsl(256, 35%, 45%)
- OKLCH: oklch(0.474 0.125 293.1)
- Relative luminance: 0.0989
- Nearest named color: Lords of the Night (#664488, Δ 3.41) — https://brandsweets.com/colors/lords-of-the-night
- Moods: cool, modern
- Page: https://brandsweets.com/colors/604b9b

## Tints & shades

- Tints (toward white): #6b53ac, #7c68b6, #8b79be, #9a8ac7, #ac9fd1, #bbb0d9, #cac1e1, #d8d2e9, #eae7f3, #f9f8fc
- Shades (toward black): #57448d, #4f3d7f, #463772, #3e3064, #352956, #2b2145, #221b37, #1a1429, #110d1c, #09070e

## Harmonies

- Complementary: #859b4b
- Analogous: #4b5d9b, #884b9b
- Triadic: #9b604b, #4b9b60
- Split-complementary: #9b884b, #5d9b4b
- Tetradic: #9b4b5d, #859b4b, #4b9b88

## Colors that go with #604b9b

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 #604b9b: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #604b9b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Blue** #0000ff [pool] — 6 real palettes, including Pixar's brand system and Tesco's brand system put Blue beside #604b9b, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Activision (https://brandsweets.com/colors/brands/activision-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #604b9b in 12 real palettes, including Wells Fargo's brand system and Walgreens's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 17 real palettes, including FIFA's brand system and Paramount+'s brand system put Midnight Blue beside #604b9b, as the lead colour. Seen in: FIFA (https://brandsweets.com/colors/brands/fifa-com), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/midnightblue
- **Red** #ff0000 [pool] — Red is paired with #604b9b in 5 real palettes, including Walgreens's brand system and L'Oréal's brand system, as the supporting colour. Seen in: Walgreens (https://brandsweets.com/colors/brands/walgreens-com), L'Oréal (https://brandsweets.com/colors/brands/loreal-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/red
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #604b9b in 12 real palettes, including Fivetran blue's brand system and Guinness's brand system, as the lead colour. Seen in: Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Guinness (https://brandsweets.com/colors/brands/guinness-com), Stripe (https://brandsweets.com/colors/brands/stripe), Motorola (https://brandsweets.com/colors/brands/motorola-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #604b9b's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: American Express (https://brandsweets.com/colors/brands/americanexpress-com), Capital One (https://brandsweets.com/colors/brands/capitalone-com), Discover (https://brandsweets.com/colors/brands/discover-com). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 7.05:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.98:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7c68b6 (4.51:1); AA: background → #cfcfcf (4.53:1); AAA: text → #9d8dc8 (7.08:1); AAA: background → #ffffff (7.05:1)

## Brands using this color

- **Wells Fargo** — accent #5a469b (Δ 1.729) — https://brandsweets.com/colors/brands/wellsfargo-com

## Fonts for this mood

- 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/604b9b-ab9cc4-dfbf4e-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: "#604b9b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.