# #3a668d

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

## Values

- Hex: `#3a668d`
- RGB: rgb(58, 102, 141)
- HSL: hsl(208, 42%, 39%)
- OKLCH: oklch(0.496 0.08 246.9)
- Relative luminance: 0.1233
- Nearest named color: Chill of the Night (#256d8d, Δ 2.499) — https://brandsweets.com/colors/chill-of-the-night
- Moods: cool, modern
- Page: https://brandsweets.com/colors/3a668d

## Tints & shades

- Tints (toward white): #4376a3, #4e86b7, #6394bf, #79a3c8, #8fb2d1, #a1bfd9, #b7cde1, #ccdcea, #e2ebf3, #f8fafc
- Shades (toward black): #355e82, #2f5474, #2b4c69, #25425b, #213a50, #1b2f41, #162736, #101d28, #0c151d, #060a0e

## Harmonies

- Complementary: #8d613a
- Analogous: #3a8d8a, #3a3c8d
- Triadic: #8d3a66, #668d3a
- Split-complementary: #8d3a3c, #8d8a3a
- Tetradic: #8a3a8d, #8d613a, #3c8d3a

## Colors that go with #3a668d

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 #3a668d: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Amazon (https://brandsweets.com/colors/brands/amazon-com), Campus (https://brandsweets.com/palettes/friendly#campus), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #3a668d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #3a668d in 7 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Activision's brand system and Tesco's brand system put Blue beside #3a668d, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3a668d: 6 real palettes, including Fintech Trust and Glacier, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #3a668d: 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), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #3a668d in 18 real palettes, including Wendy's's brand system and McDonald's's brand system, as the lead colour. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Costco (https://brandsweets.com/colors/brands/costco-com). — https://brandsweets.com/colors/crimson
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #3a668d: 7 real palettes, including Wendy's's brand system and AT&T's brand system, as the supporting colour. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), AT&T (https://brandsweets.com/colors/brands/att-com), Honda (https://brandsweets.com/colors/brands/honda-com), Campbell's (https://brandsweets.com/colors/brands/campbells-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 6.06:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #345c7f (7.04:1)
- On black (#000000): 3.47:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4479a7 (4.54:1); AA: background → #dedede (4.5:1); AAA: text → #6e9cc4 (7.22:1)

## Brands using this color

- **The New York Times** — accent #326891 (Δ 0.948) — https://brandsweets.com/colors/brands/nytimes-com

## Curated palettes containing it

- **Open House** (clean, cool, modern) — #2f6690, #8fa3b8, #e3a72f, #ffffff, #1b2a41 — Steel blue for trust, warm gold for the sold moment — an approachable brokerage that still feels established. — tool: https://brandsweets.com/palettes/new/2f6690-8fa3b8-e3a72f-ffffff-1b2a41 — collection: https://brandsweets.com/palettes/clean

## Fonts for this mood

- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3a668d-9cadc4-df4e51-1f212d-e9f1f1?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: "#3a668d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.