# #010f18

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

## Values

- Hex: `#010f18`
- RGB: rgb(1, 15, 24)
- HSL: hsl(203, 92%, 5%)
- OKLCH: oklch(0.159 0.03 233.9)
- Relative luminance: 0.0041
- Nearest named color: Black Knight (#010b13, Δ 1.763) — https://brandsweets.com/colors/black-knight
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/010f18

## Tints & shades

- Tints (toward white): #032b45, #054a76, #0766a2, #0982ce, #149ff5, #40b1f7, #6cc3f9, #98d5fb, #c9e9fd, #f5fbff
- Shades (toward black): #010f18, #010f18, #010f18, #010f18, #010f18, #010c14, #010c14, #010c14, #010c14, #010c14

## Harmonies

- Complementary: #180a01
- Analogous: #011816, #010418
- Triadic: #18010f, #0f1801
- Split-complementary: #180104, #181601
- Tetradic: #160118, #180a01, #041801

## Colors that go with #010f18

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 #010f18: softer than #000 and cool enough to feel like part of the same palette. 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
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #010f18: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #010f18's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Framer (https://brandsweets.com/colors/brands/framer). — https://brandsweets.com/colors/royalblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #010f18 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
- **Teal** #008080 [harmony, pool: analogous] — Teal is #010f18's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com), Perplexity (https://brandsweets.com/colors/brands/perplexity), Clinic (https://brandsweets.com/palettes/clean#clinic). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #010f18 in 17 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 Kia's brand system and MongoDB's brand system put Blue beside #010f18, as the accent. Seen in: Kia (https://brandsweets.com/colors/brands/kia-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #010f18 in 10 real palettes, including Twitch's brand system and Render's brand system, as the lead colour. Seen in: Twitch (https://brandsweets.com/colors/brands/twitch-tv), Render (https://brandsweets.com/colors/brands/render-com), Neobank (https://brandsweets.com/palettes/vivid#neobank), Circuit (https://brandsweets.com/palettes/technical#circuit). — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 19.39:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.08:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #087cc4 (4.69:1); AA: background → #7a7a7a (4.52:1); AAA: text → #0a9bf5 (7.02:1); AAA: background → #9c9c9c (7.06:1)

## Brands using this color

- **Audible** — text #010e19 (Δ 0.505) — https://brandsweets.com/colors/brands/audible-com

## 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/010f18-9cb0c4-df4e5d-1f222d-e9f1f0?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: "#010f18" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.