# #0f181f

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

## Values

- Hex: `#0f181f`
- RGB: rgb(15, 24, 31)
- HSL: hsl(206, 35%, 9%)
- OKLCH: oklch(0.204 0.019 242.2)
- Relative luminance: 0.0085
- Nearest named color: Black Stallion (#0e191c, Δ 0.841) — https://brandsweets.com/colors/black-stallion
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/0f181f

## Tints & shades

- Tints (toward white): #1e303e, #2d485d, #3c607c, #4b789b, #618fb3, #7ca3c0, #9bb9cf, #bacede, #d9e4ed, #f8fafc
- Shades (toward black): #0f181f, #0d151c, #0d151c, #0c1318, #0c1318, #0a1015, #0a1015, #080d11, #080d11, #070b0e

## Harmonies

- Complementary: #1f160f
- Analogous: #0f1f1e, #0f101f
- Triadic: #1f0f18, #181f0f
- Split-complementary: #1f0f10, #1f1e0f
- Tetradic: #1e0f1f, #1f160f, #101f0f

## Colors that go with #0f181f

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 that reads cleanly against #0f181f without the hard edge of pure #000. Seen in: Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Asana (https://brandsweets.com/colors/brands/asana-com), Puma (https://brandsweets.com/colors/brands/puma-com), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #0f181f in 18 real palettes, including Lemon Squeezy's brand system and Blueprint, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Monzo's brand system and MongoDB's brand system put Blue beside #0f181f, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Kia (https://brandsweets.com/colors/brands/kia-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #0f181f in 10 real palettes, including Yahoo's brand system and Prepare your taste buds...'s brand system, as the supporting colour. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com), Taco Bell (https://brandsweets.com/colors/brands/tacobell-com). — https://brandsweets.com/colors/blueviolet
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Estate and Cartier's brand system put Blush Pink beside #0f181f, as the accent. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Cartier (https://brandsweets.com/colors/brands/cartier-com), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including State Farm's brand system and Woodsmoke put Brown beside #0f181f, as the supporting colour. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Garnet (https://brandsweets.com/palettes/warm#garnet), Velvet (https://brandsweets.com/palettes/luxury#velvet). — https://brandsweets.com/colors/brown
- **Burgundy** #800020 [pool] — 4 real palettes, including Qatar Airways's brand system and Mailchimp's brand system put Burgundy beside #0f181f, as the accent. Seen in: Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com), Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Candlelight (https://brandsweets.com/palettes/warm#candlelight), Rare Beauty (https://brandsweets.com/colors/brands/rarebeauty-com). — https://brandsweets.com/colors/burgundy
- **Burlywood** #deb887 [pool] — Burlywood is paired with #0f181f in 6 real palettes, including Coffee Bar and Velvet, as the accent. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Velvet (https://brandsweets.com/palettes/luxury#velvet), Kiln (https://brandsweets.com/palettes/dark#kiln), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 17.94:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.17:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4c7b9e (4.63:1); AA: background → #808080 (4.54:1); AAA: text → #729bbb (7.12:1); AAA: background → #a3a3a3 (7.11:1)

## Brands using this color

- **Affirm** — text #101820 (Δ 0.273) — https://brandsweets.com/colors/brands/affirm-com
- **Chase** — text #101820 (Δ 0.273) — https://brandsweets.com/colors/brands/chase-com
- **Character** — primary #11181c (Δ 0.663) — https://brandsweets.com/colors/brands/character-ai
- **Character** — text #11181c (Δ 0.663) — https://brandsweets.com/colors/brands/character-ai
- **Philips** — primary #15191e (Δ 1.141) — https://brandsweets.com/colors/brands/philips-com
- **Philips** — text #15191e (Δ 1.141) — https://brandsweets.com/colors/brands/philips-com
- **Vimeo** — text #141a20 (Δ 1.182) — https://brandsweets.com/colors/brands/vimeo-com
- **Monzo** — text #091723 (Δ 1.299) — https://brandsweets.com/colors/brands/monzo-com
- **MongoDB** — text #061621 (Δ 1.679) — https://brandsweets.com/colors/brands/mongodb-com
- **Xfinity** — primary #141417 (Δ 1.908) — https://brandsweets.com/colors/brands/xfinity-com
- **Xfinity** — text #141417 (Δ 1.908) — https://brandsweets.com/colors/brands/xfinity-com
- **JetBrains** — text #19191c (Δ 1.917) — https://brandsweets.com/colors/brands/jetbrains-com
- **Netlify** — text #181a1c (Δ 1.929) — https://brandsweets.com/colors/brands/netlify-com
- **Perplexity** — text #091717 (Δ 1.933) — https://brandsweets.com/colors/brands/perplexity
- **Guinness** — text #171717 (Δ 1.936) — https://brandsweets.com/colors/brands/guinness-com
- **Next.js** — text #171717 (Δ 1.936) — https://brandsweets.com/colors/brands/nextjs-org
- **Airtable** — text #161616 (Δ 1.964) — https://brandsweets.com/colors/brands/airtable-com
- **Beats** — primary #161616 (Δ 1.964) — https://brandsweets.com/colors/brands/beatsbydre-com
- **Beats** — text #161616 (Δ 1.964) — https://brandsweets.com/colors/brands/beatsbydre-com
- **CircleCI** — text #161616 (Δ 1.964) — https://brandsweets.com/colors/brands/circleci-com
- **IBM** — primary #161616 (Δ 1.964) — https://brandsweets.com/colors/brands/ibm-com
- **IBM** — text #161616 (Δ 1.964) — https://brandsweets.com/colors/brands/ibm-com
- **Asana** — secondary #151b26 (Δ 1.975) — https://brandsweets.com/colors/brands/asana-com

## Curated palettes containing it

- **Gallery** (editorial, minimal, light) — #171717, #737373, #c2410c, #ffffff — Near-monochrome with one burnt-orange highlight — an art director's default because it never competes with the work. — tool: https://brandsweets.com/palettes/new/171717-737373-c2410c-ffffff — collection: https://brandsweets.com/palettes/editorial
- **Console Light** (technical, clean, light) — #2563eb, #52525b, #16a34a, #fafafa, #18181b — A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else. — tool: https://brandsweets.com/palettes/new/2563eb-52525b-16a34a-fafafa-18181b — collection: https://brandsweets.com/palettes/technical
- **Graphite** (technical, muted, dark, modern) — #a1a1aa, #71717a, #f59e0b, #18181b, #f4f4f5 — A greyscale system with a single amber — the accent does all the work, so allow one per screen. — tool: https://brandsweets.com/palettes/new/a1a1aa-71717a-f59e0b-18181b-f4f4f5 — collection: https://brandsweets.com/palettes/technical
- **Indigo SaaS** (modern, cool, clean) — #4f46e5, #6b7280, #10b981, #ffffff, #111827 — The dependable indigo-and-emerald B2B pairing: indigo for primary actions, emerald reserved for success states. — tool: https://brandsweets.com/palettes/new/4f46e5-6b7280-10b981-ffffff-111827 — collection: https://brandsweets.com/palettes/modern
- **Estate** (luxury, dark, elegant) — #b08d57, #8a97a5, #c9c9c9, #101418, #eef1f4 — Bronze on charcoal signals premium listings; the silver accent handles secondary detail without adding color. — tool: https://brandsweets.com/palettes/new/b08d57-8a97a5-c9c9c9-101418-eef1f4 — collection: https://brandsweets.com/palettes/luxury
- **Cobalt Pop** (bold, cool, vivid, modern) — #1e40af, #111827, #fb7185, #ffffff — One deep cobalt and one hot pink on white — a two-accent system for launches and campaign pages that need punch. — tool: https://brandsweets.com/palettes/new/1e40af-111827-fb7185-ffffff — collection: https://brandsweets.com/palettes/bold
- **Fireside** (winter, dark, warm, luxury) — #b23a3a, #2f5d50, #d4a857, #171a1f, #f2ede4 — Cranberry, pine and brass on a charcoal night — the holiday palette without the clichés, because the surface is cold. — tool: https://brandsweets.com/palettes/new/b23a3a-2f5d50-d4a857-171a1f-f2ede4 — collection: https://brandsweets.com/palettes/winter
- **Sapphire & Gold** (jewel-tones, luxury, cool, elegant) — #1e3a8a, #c9a227, #0e7490, #f7f6f2, #111827 — Deep sapphire and gold with a teal — old-money jewel tones on an ivory ground; heraldic without a crest. — tool: https://brandsweets.com/palettes/new/1e3a8a-c9a227-0e7490-f7f6f2-111827 — collection: https://brandsweets.com/palettes/jewel-tones

## 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/0f181f-9caec4-df4e56-1f212d-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: "#0f181f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.