# #010613

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

## Values

- Hex: `#010613`
- RGB: rgb(1, 6, 19)
- HSL: hsl(223, 90%, 4%)
- OKLCH: oklch(0.123 0.034 256.8)
- Relative luminance: 0.0018
- Nearest named color: Eight Ball (#03050a, Δ 2.085) — https://brandsweets.com/colors/eight-ball
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/010613

## Tints & shades

- Tints (toward white): #03143f, #06246f, #08329b, #0b41cb, #1251f3, #3d71f5, #6e95f7, #99b5fa, #cad8fc, #f5f8fe
- Shades (toward black): #010613, #010613, #010613, #010613, #010613, #010613, #010613, #010613, #010613, #010613

## Harmonies

- Complementary: #130e01
- Analogous: #010f13, #050113
- Triadic: #130106, #061301
- Split-complementary: #130501, #0f1301
- Tetradic: #13010f, #130e01, #011305

## Colors that go with #010613

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 #010613: 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: triadic] — Crimson completes a triad with #010613 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: M&M's (https://brandsweets.com/colors/brands/mms-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #010613's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Linear (https://brandsweets.com/colors/brands/linear), Calm (https://brandsweets.com/colors/brands/calm-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #010613'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
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #010613 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). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #010613 in 13 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] — 16 real palettes, including Glossier's brand system and Uber's brand system put Blue beside #010613, as the accent. Seen in: Glossier (https://brandsweets.com/colors/brands/glossier-com), Uber (https://brandsweets.com/colors/brands/uber-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com), Kia (https://brandsweets.com/colors/brands/kia-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #010613 in 9 real palettes, including Circuit and Gemstone, as the lead colour. Seen in: Circuit (https://brandsweets.com/palettes/technical#circuit), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Render (https://brandsweets.com/colors/brands/render-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv). — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 20.26:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.04:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #346af4 (4.51:1); AA: background → #787878 (4.59:1); AAA: text → #6e95f7 (7.31:1); AAA: background → #999999 (7.11:1)

## Brands using this color

- **Rare Beauty** — primary #000914 (Δ 1.387) — https://brandsweets.com/colors/brands/rarebeauty-com
- **Rare Beauty** — text #000914 (Δ 1.387) — https://brandsweets.com/colors/brands/rarebeauty-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/010613-9ca3c4-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: "#010613" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.