# #565b71

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

## Values

- Hex: `#565b71`
- RGB: rgb(86, 91, 113)
- HSL: hsl(229, 14%, 39%)
- OKLCH: oklch(0.475 0.036 274.9)
- Relative luminance: 0.1065
- Nearest named color: Concrete Landscape (#5c606e, Δ 2.026) — https://brandsweets.com/colors/concrete-landscape
- Moods: cool, muted
- Page: https://brandsweets.com/colors/565b71

## Tints & shades

- Tints (toward white): #636983, #717794, #8288a1, #9398ae, #a5a9bb, #b3b7c6, #c5c7d3, #d6d8e0, #e8e9ed, #f9f9fb
- Shades (toward black): #4f5469, #464a5d, #404354, #373a49, #303340, #272a34, #21232c, #181a20, #121317, #09090c

## Harmonies

- Complementary: #716c56
- Analogous: #566971, #5e5671
- Triadic: #71565b, #5b7156
- Split-complementary: #715e56, #697156
- Tetradic: #715669, #716c56, #56715e

## Colors that go with #565b71

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #565b71'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), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Discover (https://brandsweets.com/colors/brands/discover-com), American Express (https://brandsweets.com/colors/brands/americanexpress-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 4 real palettes, including Activision's brand system and Warp's brand system put Blue beside #565b71, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Tesco (https://brandsweets.com/colors/brands/tesco-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Darkroom and BrandSweets's brand system put Champagne beside #565b71, as the surface under it. Seen in: Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #565b71: 4 real palettes, including Dusk and Desert Road, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #565b71 in 9 real palettes, including Codecademy's brand system and Gemstone, as the accent. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #565b71: 13 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
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #565b71: 4 real palettes, including Fireside and Newsprint, as the lead colour. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Newsprint (https://brandsweets.com/palettes/editorial#newsprint), Wendy's (https://brandsweets.com/colors/brands/wendys-com), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #565b71: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 6.71:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #53586e (7.03:1)
- On black (#000000): 3.13:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6e7491 (4.57:1); AA: background → #d4d4d4 (4.53:1); AAA: text → #9196ac (7.16:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/565b71-9c9fc4-df7e4e-231f2d-e9eef1?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: "#565b71" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.