# #554b6c

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

## Values

- Hex: `#554b6c`
- RGB: rgb(85, 75, 108)
- HSL: hsl(258, 18%, 36%)
- OKLCH: oklch(0.436 0.055 298)
- Relative luminance: 0.0805
- Nearest named color: Haunted Candelabra (#57446a, Δ 1.974) — https://brandsweets.com/colors/haunted-candelabra
- Moods: cool, muted
- Page: https://brandsweets.com/colors/554b6c

## Tints & shades

- Tints (toward white): #63587e, #726490, #8478a1, #948aad, #a59cba, #b5aec7, #c6c0d3, #d9d5e2, #e9e7ee, #faf9fb
- Shades (toward black): #4e4563, #473f5a, #3e364e, #363045, #2f2a3c, #282433, #211d2a, #18151e, #110f15, #09080c

## Harmonies

- Complementary: #626c4b
- Analogous: #4b526c, #664b6c
- Triadic: #6c554b, #4b6c55
- Split-complementary: #6c664b, #526c4b
- Tetradic: #6c4b52, #626c4b, #4b6c66

## Colors that go with #554b6c

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 #554b6c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com), Capital One (https://brandsweets.com/colors/brands/capitalone-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #554b6c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 5 real palettes, including Alaska Airlines's brand system and CVS's brand system put Blue beside #554b6c, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), CVS (https://brandsweets.com/colors/brands/cvs-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), Tesco (https://brandsweets.com/colors/brands/tesco-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #554b6c: 4 real palettes, including Dusk and Open House, as the supporting colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house), Alpine (https://brandsweets.com/palettes/cool#alpine), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Crimson** #dc143c [pool] — Crimson is paired with #554b6c in 7 real palettes, including Codecademy's brand system and Wells Fargo's brand system, as the accent. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-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 #554b6c: 11 real palettes, including HP's brand system and Hinge's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), 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/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #554b6c in 5 real palettes, including Open House and Fireside, as the accent. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Fireside (https://brandsweets.com/palettes/dark#fireside), Disney (https://brandsweets.com/colors/brands/disney-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/goldenrod
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #554b6c: 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): 8.05:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.61:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7c6f9b (4.6:1); AA: background → #c2c2c2 (4.52:1); AAA: text → #9a90b2 (7.01:1); AAA: background → #f0f0f0 (7.06:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/554b6c-ad9cc4-dfc44e-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: "#554b6c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.