# #554f63

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

## Values

- Hex: `#554f63`
- RGB: rgb(85, 79, 99)
- HSL: hsl(258, 11%, 35%)
- OKLCH: oklch(0.441 0.033 298.8)
- Relative luminance: 0.0842
- Nearest named color: Freefall (#565266, Δ 0.938) — https://brandsweets.com/colors/freefall
- Moods: cool, muted
- Page: https://brandsweets.com/colors/554f63

## Tints & shades

- Tints (toward white): #645d74, #756d88, #857d97, #958ea4, #a7a2b4, #b7b3c2, #c7c4cf, #d7d5dd, #eae8ed, #faf9fa
- Shades (toward black): #4e495b, #474252, #3f3b4a, #383441, #312d39, #27242d, #201e25, #18171c, #111014, #0a090b

## Harmonies

- Complementary: #5d634f
- Analogous: #4f5363, #5f4f63
- Triadic: #63554f, #4f6355
- Split-complementary: #635f4f, #53634f
- Tetradic: #634f53, #5d634f, #4f635f

## Colors that go with #554f63

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

- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #554f63 — 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), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com), Clinic (https://brandsweets.com/palettes/clean#clinic). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 5 real palettes, including Jeep's brand system and Alaska Airlines's brand system put Blue beside #554f63, as the accent. Seen in: Jeep (https://brandsweets.com/colors/brands/jeep-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #554f63: 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), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/cadetblue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #554f63: 5 real palettes, including Desert Road and Dusk, as the lead colour. Seen in: Desert Road (https://brandsweets.com/palettes/warm#desert-road), Dusk (https://brandsweets.com/palettes/cool#dusk), Bramble (https://brandsweets.com/palettes/muted#bramble), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #554f63 in 4 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), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #554f63: 8 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 #554f63 in 4 real palettes, including Fireside and Open House, as the accent. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Open House (https://brandsweets.com/palettes/clean#open-house), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Disney (https://brandsweets.com/colors/brands/disney-com). — https://brandsweets.com/colors/goldenrod
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #554f63: 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): 7.82:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.68:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7a718e (4.58:1); AA: background → #c7c7c7 (4.63:1); AAA: text → #9a93a9 (7.12:1); AAA: background → #f5f5f5 (7.17:1)

## Curated palettes containing it

- **Console Light** (technical, clean, light) — #2563eb, #52525b, #16a34a, #fafafa, #18181b — A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else. — tool: https://brandsweets.com/palettes/new/2563eb-52525b-16a34a-fafafa-18181b — collection: https://brandsweets.com/palettes/technical

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/554f63-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: "#554f63" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.