# #040b16

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

## Values

- Hex: `#040b16`
- RGB: rgb(4, 11, 22)
- HSL: hsl(217, 69%, 5%)
- OKLCH: oklch(0.148 0.027 255.2)
- Relative luminance: 0.0032
- Nearest named color: Dark Rift (#060b14, Δ 0.618) — https://brandsweets.com/colors/dark-rift
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/040b16

## Tints & shades

- Tints (toward white): #0b1e3c, #133367, #1a478e, #215ab5, #3071d9, #578ce0, #7ea6e7, #a5c1ee, #d0def6, #f6f9fd
- Shades (toward black): #040b16, #040b16, #040b16, #040b16, #040b16, #030911, #030911, #030911, #030911, #030911

## Harmonies

- Complementary: #160f04
- Analogous: #041316, #060416
- Triadic: #16040b, #0b1604
- Split-complementary: #160604, #131604
- Tetradic: #160413, #160f04, #041606

## Colors that go with #040b16

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 #040b16 without the hard edge of pure #000. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Amazon (https://brandsweets.com/colors/brands/amazon-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #040b16 in 16 real palettes, including Southwest Airlines's brand system and Ahrefs's brand system, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 18 real palettes, including Pfizer's brand system and Kia's brand system put Blue beside #040b16, as the supporting colour. Seen in: Pfizer (https://brandsweets.com/colors/brands/pfizer-com), Kia (https://brandsweets.com/colors/brands/kia-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #040b16 in 10 real palettes, including Gemstone and Circuit, as the supporting colour. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Circuit (https://brandsweets.com/palettes/technical#circuit), Twitch (https://brandsweets.com/colors/brands/twitch-tv), Render (https://brandsweets.com/colors/brands/render-com). — https://brandsweets.com/colors/blueviolet
- **Brown** #a52a2a [pool] — 4 real palettes, including Velvet and State Farm's brand system put Brown beside #040b16, as the lead colour. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), State Farm (https://brandsweets.com/colors/brands/statefarm-com), 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 Rare Beauty's brand system and Mailchimp's brand system put Burgundy beside #040b16, as the supporting colour. Seen in: Rare Beauty (https://brandsweets.com/colors/brands/rarebeauty-com), Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com), Candlelight (https://brandsweets.com/palettes/warm#candlelight). — https://brandsweets.com/colors/burgundy
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #040b16: 7 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
- **Champagne** #f7e7ce [pool] — 8 real palettes, including Midnight Luxe and Sweetgreen's brand system put Champagne beside #040b16, as the text colour against it. Seen in: Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Bramble (https://brandsweets.com/palettes/muted#bramble), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne

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

- On white (#ffffff): 19.73:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.06:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3474da (4.66:1); AA: background → #7a7a7a (4.6:1); AAA: text → #6897e3 (7.12:1); AAA: background → #9c9c9c (7.18:1)

## Brands using this color

- **Airbus** — primary #070b11 (Δ 1.256) — https://brandsweets.com/colors/brands/airbus-com
- **Airbus** — text #070b11 (Δ 1.256) — https://brandsweets.com/colors/brands/airbus-com
- **Audible** — text #010e19 (Δ 1.274) — https://brandsweets.com/colors/brands/audible-com
- **Rare Beauty** — primary #000914 (Δ 1.582) — https://brandsweets.com/colors/brands/rarebeauty-com
- **Rare Beauty** — text #000914 (Δ 1.582) — https://brandsweets.com/colors/brands/rarebeauty-com

## Curated palettes containing it

- **Midnight Luxe** (luxury, dark, elegant) — #cbb26a, #8b83a8, #b8b8c8, #0a0a12, #efe9dd — Champagne gold on ink-navy with a violet undertone — hotels and spirits use it because it reads expensive at any size. — tool: https://brandsweets.com/palettes/new/cbb26a-8b83a8-b8b8c8-0a0a12-efe9dd — collection: https://brandsweets.com/palettes/luxury
- **Arcade** (neon, vivid, dark, bold) — #ff2e88, #00f0ff, #faff00, #0a0a14, #f5f5ff — Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up. — tool: https://brandsweets.com/palettes/new/ff2e88-00f0ff-faff00-0a0a14-f5f5ff — collection: https://brandsweets.com/palettes/neon

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- 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/040b16-9ca7c4-df624e-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: "#040b16" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.