# #665478

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

## Values

- Hex: `#665478`
- RGB: rgb(102, 84, 120)
- HSL: hsl(270, 18%, 40%)
- OKLCH: oklch(0.478 0.061 307)
- Relative luminance: 0.1052
- Nearest named color: Berry Jam (#655883, Δ 1.845) — https://brandsweets.com/colors/berry-jam
- Moods: cool, muted
- Page: https://brandsweets.com/colors/665478

## Tints & shades

- Tints (toward white): #75608a, #856f9b, #917ea5, #a190b2, #b0a2be, #bfb4cb, #cfc6d7, #dbd5e2, #ebe7ee, #faf9fb
- Shades (toward black): #5c4b6c, #544563, #4a3d57, #42364e, #382e42, #2e2636, #261f2d, #1c1721, #141118, #0a080c

## Harmonies

- Complementary: #667854
- Analogous: #545478, #785478
- Triadic: #786654, #547866
- Split-complementary: #787854, #547854
- Tetradic: #785454, #667854, #547878

## Colors that go with #665478

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 #665478: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Campus (https://brandsweets.com/palettes/friendly#campus), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Amazon (https://brandsweets.com/colors/brands/amazon-com). — https://brandsweets.com/colors/charcoal
- **Champagne** #f7e7ce [pool] — 4 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #665478. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/champagne
- **Crimson** #dc143c [pool] — Crimson is paired with #665478 in 6 real palettes, including Wells Fargo's brand system and Codecademy's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #665478: 8 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), Campus (https://brandsweets.com/palettes/friendly#campus), Dutch Bros (https://brandsweets.com/colors/brands/dutchbros-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #665478 in 4 real palettes, including Open House and Mid-Century, as the accent. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Fireside (https://brandsweets.com/palettes/dark#fireside), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #665478 in 4 real palettes, including Console Light and Fintech Trust, as the accent. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Lufthansa's brand system and Fintech Trust put Midnight Blue beside #665478, 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), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/midnightblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #665478 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/teal

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

- On white (#ffffff): 6.76:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #635275 (7.01:1)
- On black (#000000): 3.1:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #826c99 (4.55:1); AA: background → #d4d4d4 (4.56:1); AAA: text → #a190b2 (7.15:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/665478-b59cc4-c9cb62-2c1f2d-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: "#665478" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.