# #09121f

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

## Values

- Hex: `#09121f`
- RGB: rgb(9, 18, 31)
- HSL: hsl(215, 55%, 8%)
- OKLCH: oklch(0.181 0.03 257.5)
- Relative luminance: 0.0059
- Nearest named color: Midnight Edition (#0c121b, Δ 0.935) — https://brandsweets.com/colors/midnight-edition
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/09121f

## Tints & shades

- Tints (toward white): #142743, #1e3c67, #28518a, #3266ae, #457cc9, #6995d3, #8caede, #b0c7e8, #d4e0f2, #f7f9fd
- Shades (toward black): #091320, #08101c, #08101c, #070e18, #070e18, #070e18, #060c14, #060c14, #050910, #050910

## Harmonies

- Complementary: #201609
- Analogous: #091e20, #0b0920
- Triadic: #200913, #132009
- Split-complementary: #200b09, #1e2009
- Tetradic: #20091e, #201609, #09200b

## Colors that go with #09121f

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 #09121f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: split] — Dark Olive Green is a split-complement of #09121f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Cohere (https://brandsweets.com/colors/brands/cohere-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/darkolivegreen
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #09121f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Intel (https://brandsweets.com/colors/brands/intel-com), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #09121f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Oatly (https://brandsweets.com/colors/brands/oatly-com), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #09121f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Sentry (https://brandsweets.com/colors/brands/sentry-io), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Calm (https://brandsweets.com/colors/brands/calm-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #09121f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic), Perplexity (https://brandsweets.com/colors/brands/perplexity), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #09121f in 18 real palettes, including Southwest Airlines's brand system and Lemon Squeezy's brand system, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including Kia's brand system and MongoDB's brand system put Blue beside #09121f, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Monzo (https://brandsweets.com/colors/brands/monzo-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 18.78:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.12:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3d77c7 (4.66:1); AA: background → #7d7d7d (4.56:1); AAA: text → #6d98d5 (7.1:1); AAA: background → #9e9e9e (7.01:1)

## Brands using this color

- **Kia** — primary #05141f (Δ 0.922) — https://brandsweets.com/colors/brands/kia-com
- **Kia** — text #05141f (Δ 0.922) — https://brandsweets.com/colors/brands/kia-com
- **Hugging Face** — primary #0b0f19 (Δ 1.463) — https://brandsweets.com/colors/brands/huggingface-co
- **MongoDB** — text #061621 (Δ 1.472) — https://brandsweets.com/colors/brands/mongodb-com
- **Southwest Airlines** — primary #090f23 (Δ 1.528) — https://brandsweets.com/colors/brands/southwest-com
- **Southwest Airlines** — text #090f23 (Δ 1.528) — https://brandsweets.com/colors/brands/southwest-com
- **Railway** — text #13111c (Δ 1.814) — https://brandsweets.com/colors/brands/railway-app
- **League of Legends** — primary #0a1428 (Δ 1.885) — https://brandsweets.com/colors/brands/leagueoflegends-com
- **League of Legends** — text #0a1428 (Δ 1.885) — https://brandsweets.com/colors/brands/leagueoflegends-com
- **Monzo** — text #091723 (Δ 1.886) — https://brandsweets.com/colors/brands/monzo-com

## Curated palettes containing it

- **Ledger Dark** (dark, luxury, technical) — #c9a227, #7c8aa5, #34d399, #0c1222, #e8edf5 — Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy. — tool: https://brandsweets.com/palettes/new/c9a227-7c8aa5-34d399-0c1222-e8edf5 — collection: https://brandsweets.com/palettes/dark

## 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/09121f-9ca8c4-df5d4e-201f2d-e9f0f1?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: "#09121f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.