# #183d3e

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

## Values

- Hex: `#183d3e`
- RGB: rgb(24, 61, 62)
- HSL: hsl(182, 44%, 17%)
- OKLCH: oklch(0.334 0.042 197.7)
- Relative luminance: 0.0388
- Nearest named color: Sunken Harbour (#1c3d44, Δ 1.211) — https://brandsweets.com/colors/sunken-harbour
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/183d3e

## Tints & shades

- Tints (toward white): #245a5c, #2f7779, #3b9397, #46b0b4, #65c0c3, #82ccce, #a0d8da, #bde4e5, #daf0f1, #f8fcfc
- Shades (toward black): #173a3b, #143233, #132f30, #112b2c, #102828, #0d2021, #0b1d1d, #0a191a, #071212, #060e0f

## Harmonies

- Complementary: #3e1a18
- Analogous: #183e2d, #182a3e
- Triadic: #3e183d, #3d3e18
- Split-complementary: #3e182a, #3e2d18
- Tetradic: #2d183e, #3e1a18, #2a3e18

## Colors that go with #183d3e

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

- **Crimson** #dc143c [harmony, pool: complementary] — Crimson sits directly opposite #183d3e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: split] — Sienna is a split-complement of #183d3e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Harvest (https://brandsweets.com/palettes/warm#harvest), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #183d3e's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #183d3e in 6 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Jeep's brand system and Instacart's brand system put Blue beside #183d3e, as the accent. Seen in: Jeep (https://brandsweets.com/colors/brands/jeep-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Garden Wedding put Blush Pink beside #183d3e, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Blush (https://brandsweets.com/palettes/light#blush), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink
- **Burlywood** #deb887 [pool] — Burlywood is paired with #183d3e in 4 real palettes, including Polaroid and Coastal, as the accent. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Coastal (https://brandsweets.com/palettes/cool#coastal), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/burlywood
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #183d3e: 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): 11.83:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.78:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #338184 (4.61:1); AA: background → #a1a1a1 (4.58:1); AAA: text → #42a5a9 (7.19:1); AAA: background → #c9c9c9 (7.14:1)

## Brands using this color

- **Chobani** — secondary #1a3c34 (Δ 1.688) — https://brandsweets.com/colors/brands/chobani-com
- **Logitech** — accent #0d3a38 (Δ 1.737) — https://brandsweets.com/colors/brands/logitech-com

## Curated palettes containing it

- **Mint Chip** (pastel, light, clean) — #98d8c8, #c8e6c9, #f7c8a0, #fbfffd, #1f3a33 — Mint and celadon with a peach accent — fresh without being clinical; the deep green text keeps it grounded. — tool: https://brandsweets.com/palettes/new/98d8c8-c8e6c9-f7c8a0-fbfffd-1f3a33 — collection: https://brandsweets.com/palettes/pastel

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- 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/183d3e-a2babe-d45990-1f272d-e9f1ee?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: "#183d3e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.