# #667d8a

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

## Values

- Hex: `#667d8a`
- RGB: rgb(102, 125, 138)
- HSL: hsl(202, 15%, 47%)
- OKLCH: oklch(0.576 0.033 232.9)
- Relative luminance: 0.1933
- Nearest named color: Citadel (#6a7f8b, Δ 0.833) — https://brandsweets.com/colors/citadel
- Moods: cool, muted
- Page: https://brandsweets.com/colors/667d8a

## Tints & shades

- Tints (toward white): #728997, #8196a2, #90a2ad, #9eaeb7, #b0bdc4, #bec9cf, #cdd5da, #dce2e5, #eaeef0, #f9fafb
- Shades (toward black): #5d727e, #52656f, #4a5a64, #415058, #38454c, #2e383e, #252d32, #1c2226, #111517, #090b0c

## Harmonies

- Complementary: #8a7366
- Analogous: #668a85, #666b8a
- Triadic: #8a667d, #7d8a66
- Split-complementary: #8a666b, #8a8566
- Tetradic: #85668a, #8a7366, #6b8a66

## Colors that go with #667d8a

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 #667d8a: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #667d8a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Atelier (https://brandsweets.com/palettes/elegant#atelier), Wellness (https://brandsweets.com/palettes/warm#wellness), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #667d8a in 4 real palettes, including Beach Hut and Lemon Squeezy's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wired (https://brandsweets.com/colors/brands/wired-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Champagne** #f7e7ce [pool] — 6 real palettes, including Forest Floor and Midnight Luxe put Champagne beside #667d8a, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/champagne
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #667d8a: 6 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
- **Crimson** #dc143c [pool] — Crimson is paired with #667d8a in 10 real palettes, including Retro Pop and Redfin's brand system, as the lead colour. Seen in: 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), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #667d8a: 4 real palettes, including Deep Water and Astro's brand system, as the lead colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #667d8a: 13 real palettes, including Campus and Discover's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Discover (https://brandsweets.com/colors/brands/discover-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), The New York Times (https://brandsweets.com/colors/brands/nytimes-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.32:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #627784 (4.68:1); AA: background → #0d0d0d (4.5:1); AAA: text → #4a5a64 (7.15:1)
- On black (#000000): 4.87:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8498a4 (7.01:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/667d8a-9cb1c4-df4e5f-1f222d-e9f1f0?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: "#667d8a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.