# #183a36

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

## Values

- Hex: `#183a36`
- RGB: rgb(24, 58, 54)
- HSL: hsl(173, 41%, 16%)
- OKLCH: oklch(0.322 0.04 185.3)
- Relative luminance: 0.0349
- Nearest named color: Botanical Night (#12403c, Δ 1.995) — https://brandsweets.com/colors/botanical-night
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/183a36

## Tints & shades

- Tints (toward white): #245650, #30736b, #3e9389, #4ab0a4, #64beb4, #81cac2, #9ed6d0, #bee4e0, #dbf0ee, #f8fcfc
- Shades (toward black): #173632, #15322f, #122b28, #112825, #0f2422, #0e201e, #0c1d1b, #091614, #081211, #060e0d

## Harmonies

- Complementary: #3a181c
- Analogous: #183a25, #182d3a
- Triadic: #36183a, #3a3618
- Split-complementary: #3a182d, #3a2518
- Tetradic: #25183a, #3a181c, #2d3a18

## Colors that go with #183a36

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

- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #183a36: 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), Harvest (https://brandsweets.com/palettes/warm#harvest), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/rust
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #183a36's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Subaru (https://brandsweets.com/colors/brands/subaru-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #183a36 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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 #183a36'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), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/teal
- **Indian Red** #cd5c5c [harmony, pool: complementary] — Indian Red sits directly opposite #183a36 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Zed (https://brandsweets.com/colors/brands/zed-dev). — https://brandsweets.com/colors/indianred
- **Amber** #ffbf00 [pool] — Amber is paired with #183a36 in 8 real palettes, including McDonald's's brand system and Beach Hut, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Instacart's brand system and Jeep's brand system put Blue beside #183a36, as the accent. Seen in: Instacart (https://brandsweets.com/colors/brands/instacart-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **White Smoke** #f5f5f5 [role] — White Smoke is the surface for #183a36: 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): 12.37:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.7:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #368179 (4.57:1); AA: background → #9c9c9c (4.51:1); AAA: text → #45a59a (7.1:1); AAA: background → #c4c4c4 (7.09:1)

## Brands using this color

- **Chobani** — accent #1b3a32 (Δ 0.729) — https://brandsweets.com/colors/brands/chobani-com
- **Logitech** — accent #0d3a38 (Δ 0.903) — https://brandsweets.com/colors/brands/logitech-com
- **Chobani** — secondary #1a3c34 (Δ 0.925) — https://brandsweets.com/colors/brands/chobani-com
- **N26** — accent #003b39 (Δ 1.554) — https://brandsweets.com/colors/brands/n26-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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/183a36-a2bebe-d459a3-1f292d-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: "#183a36" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.