# #1b554a

A color — dark, luxury, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#1b554a`
- RGB: rgb(27, 85, 74)
- HSL: hsl(169, 52%, 22%)
- OKLCH: oklch(0.409 0.062 178.1)
- Relative luminance: 0.0722
- Nearest named color: Cape Verde (#01554f, Δ 1.32) — https://brandsweets.com/colors/cape-verde
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/1b554a

## Tints & shades

- Tints (toward white): #257466, #2d8f7d, #37ae99, #45c4ad, #64cebb, #83d8c8, #9ee0d4, #bdeae2, #d8f3ee, #f7fdfc
- Shades (toward black): #184e44, #16463d, #15423a, #123a33, #10322c, #0d2b25, #0b231f, #0a1f1b, #071714, #05100e

## Harmonies

- Complementary: #551b26
- Analogous: #1b552d, #1b4355
- Triadic: #4b1b55, #554b1b
- Split-complementary: #551b43, #552d1b
- Tetradic: #2d1b55, #551b26, #43551b

## Colors that go with #1b554a

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

- **Blue** #0000ff [pool] — 7 real palettes, including Jeep's brand system and Rolex's brand system put Blue beside #1b554a, as the accent. Seen in: Jeep (https://brandsweets.com/colors/brands/jeep-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #1b554a in 5 real palettes, including Codecademy's brand system and MAC Cosmetics's brand system, as the accent. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), MAC Cosmetics (https://brandsweets.com/colors/brands/maccosmetics-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1b554a: 6 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent. Seen in: 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), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/denim
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #1b554a in 6 real palettes, including Neon's brand system and Chime's brand system, as the lead colour. Seen in: Neon (https://brandsweets.com/colors/brands/neon-tech), Chime (https://brandsweets.com/colors/brands/chime-com), CircleCI (https://brandsweets.com/colors/brands/circleci-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/emerald-green
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #1b554a in 4 real palettes, including Fireside and Disney's brand system, as the accent. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Disney (https://brandsweets.com/colors/brands/disney-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #1b554a, as the accent. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Plaid (https://brandsweets.com/colors/brands/plaid-com), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com). — https://brandsweets.com/colors/midnightblue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #1b554a: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy. — https://brandsweets.com/colors/whitesmoke
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #1b554a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: IHG (https://brandsweets.com/colors/brands/ihg-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/rust

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

- On white (#ffffff): 8.59:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.44:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2a8473 (4.65:1); AA: background → #bdbdbd (4.57:1); AAA: text → #35a792 (7.09:1); AAA: background → #e8e8e8 (7.01:1)

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/1b554a-a2bebc-d459ab-1f2a2d-e9f1ec?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: "#1b554a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.