# #665091

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

## Values

- Hex: `#665091`
- RGB: rgb(102, 80, 145)
- HSL: hsl(260, 29%, 44%)
- OKLCH: oklch(0.483 0.104 298)
- Relative luminance: 0.1061
- Nearest named color: Grapes of Italy (#714a8b, Δ 2.404) — https://brandsweets.com/colors/grapes-of-italy
- Moods: cool, muted
- Page: https://brandsweets.com/colors/665091

## Tints & shades

- Tints (toward white): #7159a1, #816bae, #8f7bb7, #a08fc1, #aea0ca, #bcb0d4, #cdc4de, #dbd4e7, #ebe8f2, #f9f8fb
- Shades (toward black): #5c4884, #534176, #4a3a69, #40335c, #372b4f, #2e2442, #251d35, #1c1627, #120e1a, #09070d

## Harmonies

- Complementary: #7b9150
- Analogous: #505b91, #865091
- Triadic: #916550, #509165
- Split-complementary: #918650, #5b9150
- Tetradic: #91505b, #7b9150, #509186

## Colors that go with #665091

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 #665091: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Amazon (https://brandsweets.com/colors/brands/amazon-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #665091: 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), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/seagreen
- **Blue** #0000ff [pool] — 4 real palettes, including Pixar's brand system and Tesco's brand system put Blue beside #665091, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Activision (https://brandsweets.com/colors/brands/activision-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #665091 in 9 real palettes, including Wells Fargo's brand system and Marvel's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #665091: 12 real palettes, including HP's brand system and The New York Times's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Dutch Bros (https://brandsweets.com/colors/brands/dutchbros-com), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 13 real palettes, including Lufthansa's brand system and Fintech Trust put Midnight Blue beside #665091, as the lead colour. Seen in: Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), FIFA (https://brandsweets.com/colors/brands/fifa-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #665091 in 12 real palettes, including Stripe's brand system and GitHub's brand system, as the accent. Seen in: Stripe (https://brandsweets.com/colors/brands/stripe), GitHub (https://brandsweets.com/colors/brands/github), Guinness (https://brandsweets.com/colors/brands/guinness-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #665091's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Capital One (https://brandsweets.com/colors/brands/capitalone-com), American Express (https://brandsweets.com/colors/brands/americanexpress-com), Discover (https://brandsweets.com/colors/brands/discover-com). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 6.73:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #614c8a (7.22:1)
- On black (#000000): 3.12:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #816bae (4.65:1); AA: background → #d4d4d4 (4.54:1); AAA: text → #a08fc1 (7.19:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/665091-ae9cc4-dfc94e-2a1f2d-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: "#665091" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.