# #4d666f

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

## Values

- Hex: `#4d666f`
- RGB: rgb(77, 102, 111)
- HSL: hsl(196, 18%, 37%)
- OKLCH: oklch(0.494 0.033 222)
- Relative luminance: 0.1223
- Nearest named color: Concrete Landscape (#5c606e, Δ 2.585) — https://brandsweets.com/colors/concrete-landscape
- Moods: cool, muted
- Page: https://brandsweets.com/colors/4d666f

## Tints & shades

- Tints (toward white): #5a7781, #668793, #7896a1, #8aa4ad, #9fb4bc, #b1c2c9, #c3d0d5, #d5dee2, #e7ecee, #f9fafb
- Shades (toward black): #475e66, #3f535a, #384b51, #324248, #2c3a3f, #242f33, #1d272a, #171e21, #0f1315, #080b0c

## Harmonies

- Complementary: #6f564d
- Analogous: #4d6f67, #4d556f
- Triadic: #6f4d66, #666f4d
- Split-complementary: #6f4d55, #6f674d
- Tetradic: #674d6f, #6f564d, #556f4d

## Colors that go with #4d666f

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 #4d666f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Gusto (https://brandsweets.com/colors/brands/gusto-com), Harbour (https://brandsweets.com/palettes/cool#harbour), Pampers (https://brandsweets.com/colors/brands/pampers-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #4d666f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/sienna
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Darkroom and BrandSweets's brand system put Champagne beside #4d666f, as the surface under it. Seen in: Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #4d666f: 4 real palettes, including Ink & Paper and Fintech Trust, as the accent. Seen in: Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Intel (https://brandsweets.com/colors/brands/intel-com), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #4d666f: 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), 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 #4d666f in 9 real palettes, including Gemstone and Retro Pop, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Redfin (https://brandsweets.com/colors/brands/redfin-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com). — https://brandsweets.com/colors/crimson
- **Dark Goldenrod** #b8860b [pool] — 4 real palettes, including Greige and Cider put Dark Goldenrod beside #4d666f, as the accent. Seen in: Greige (https://brandsweets.com/palettes/neutral#greige), Cider (https://brandsweets.com/palettes/warm#cider), Rolex (https://brandsweets.com/colors/brands/rolex-com), Puma (https://brandsweets.com/colors/brands/puma-com). — https://brandsweets.com/colors/darkgoldenrod
- **Denim** #1560bd [pool] — Designers have shipped Denim with #4d666f: 14 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

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

- On white (#ffffff): 6.09:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #455b63 (7.17:1)
- On black (#000000): 3.45:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5c7a84 (4.57:1); AA: background → #dedede (4.53:1); AAA: text → #7e9ba5 (7.12:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4d666f-9cb5c4-df4e6e-1f232d-e9f1ef?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: "#4d666f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.