# #0b101d

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

## Values

- Hex: `#0b101d`
- RGB: rgb(11, 16, 29)
- HSL: hsl(223, 45%, 8%)
- OKLCH: oklch(0.175 0.028 267.4)
- Relative luminance: 0.0053
- Nearest named color: Midnight Edition (#0c121b, Δ 0.999) — https://brandsweets.com/colors/midnight-edition
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/0b101d

## Tints & shades

- Tints (toward white): #18233f, #243560, #314881, #3e5aa3, #5170bd, #728bca, #94a7d6, #b5c2e3, #d6ddf0, #f8f9fc
- Shades (toward black): #0b101e, #0a0e1a, #0a0e1a, #080c16, #080c16, #080c16, #070a12, #070a12, #06080f, #06080f

## Harmonies

- Complementary: #1e180b
- Analogous: #0b1a1e, #0f0b1e
- Triadic: #1e0b10, #101e0b
- Split-complementary: #1e0f0b, #1a1e0b
- Tetradic: #1e0b1a, #1e180b, #0b1e0f

## Colors that go with #0b101d

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 #0b101d without the hard edge of pure #000. 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
- **Amber** #ffbf00 [pool] — Amber is paired with #0b101d 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), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including Kia's brand system and MongoDB's brand system put Blue beside #0b101d, 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
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #0b101d in 10 real palettes, including Gemstone and Twitch's brand system, as the supporting colour. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Twitch (https://brandsweets.com/colors/brands/twitch-tv), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com). — https://brandsweets.com/colors/blueviolet
- **Brown** #a52a2a [pool] — 5 real palettes, including State Farm's brand system and Velvet put Brown beside #0b101d, as the supporting colour. Seen in: State Farm (https://brandsweets.com/colors/brands/statefarm-com), Velvet (https://brandsweets.com/palettes/luxury#velvet), Garnet (https://brandsweets.com/palettes/warm#garnet), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/brown
- **Burgundy** #800020 [pool] — 4 real palettes, including Mailchimp's brand system and Qatar Airways's brand system put Burgundy beside #0b101d, as the accent. Seen in: Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com), Rare Beauty (https://brandsweets.com/colors/brands/rarebeauty-com), Candlelight (https://brandsweets.com/palettes/warm#candlelight). — https://brandsweets.com/colors/burgundy
- **Burlywood** #deb887 [pool] — Burlywood is paired with #0b101d in 5 real palettes, including Velvet and Coffee Bar, as the accent. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Kiln (https://brandsweets.com/palettes/dark#kiln), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #0b101d: 9 real palettes, including Estate and Arctic, as the supporting colour. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Arctic (https://brandsweets.com/palettes/clean#arctic), Diner (https://brandsweets.com/palettes/vivid#diner), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/cadetblue

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

- On white (#ffffff): 18.99:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.11:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5573be (4.58:1); AA: background → #7d7d7d (4.61:1); AAA: text → #7e94ce (7.01:1); AAA: background → #9e9e9e (7.09:1)

## Brands using this color

- **Hugging Face** — primary #0b0f19 (Δ 0.842) — https://brandsweets.com/colors/brands/huggingface-co
- **Southwest Airlines** — primary #090f23 (Δ 1.422) — https://brandsweets.com/colors/brands/southwest-com
- **Southwest Airlines** — text #090f23 (Δ 1.422) — https://brandsweets.com/colors/brands/southwest-com
- **Railway** — text #13111c (Δ 1.623) — https://brandsweets.com/colors/brands/railway-app
- **Kia** — primary #05141f (Δ 1.626) — https://brandsweets.com/colors/brands/kia-com
- **Kia** — text #05141f (Δ 1.626) — https://brandsweets.com/colors/brands/kia-com

## Curated palettes containing it

- **Terminal** (technical, dark, modern) — #3fb950, #58a6ff, #f778ba, #0b0f14, #e6edf3 — Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare. — tool: https://brandsweets.com/palettes/new/3fb950-58a6ff-f778ba-0b0f14-e6edf3 — collection: https://brandsweets.com/palettes/technical
- **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/0b101d-9ca3c4-df704e-211f2d-e9eff1?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: "#0b101d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.