# #00212d

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

## Values

- Hex: `#00212d`
- RGB: rgb(0, 33, 45)
- HSL: hsl(196, 100%, 9%)
- OKLCH: oklch(0.231 0.044 226.4)
- Relative luminance: 0.0128
- Nearest named color: Midnight Dreams (#002233, Δ 1.166) — https://brandsweets.com/colors/midnight-dreams
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/00212d

## Tints & shades

- Tints (toward white): #00435c, #00658a, #0087b8, #00a8e6, #14c0ff, #3dcbff, #6bd8ff, #99e4ff, #c7f0ff, #f5fcff
- Shades (toward black): #00222e, #001e29, #001e29, #001a24, #001a24, #00161f, #00161f, #001319, #001319, #000f14

## Harmonies

- Complementary: #2e0c00
- Analogous: #002e23, #000b2e
- Triadic: #2e0022, #222e00
- Split-complementary: #2e000b, #2e2300
- Tetradic: #23002e, #2e0c00, #0b2e00

## Colors that go with #00212d

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 #00212d: softer than #000 and cool enough to feel like part of the same palette. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Audi (https://brandsweets.com/colors/brands/audi-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #00212d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Diner (https://brandsweets.com/palettes/vivid#diner), Huawei (https://brandsweets.com/colors/brands/huawei-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #00212d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Cisco (https://brandsweets.com/colors/brands/cisco-com), Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace), Chase (https://brandsweets.com/colors/brands/chase-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/royalblue
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #00212d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Oatly (https://brandsweets.com/colors/brands/oatly-com). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #00212d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Clinic (https://brandsweets.com/palettes/clean#clinic), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #00212d in 18 real palettes, including Blueprint and Google's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-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 #00212d, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Signal (https://brandsweets.com/colors/brands/signal-org), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #00212d in 10 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), 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). — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 16.73:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.26:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #007fad (4.64:1); AA: background → #858585 (4.53:1); AAA: text → #00a1db (7.12:1); AAA: background → #a8a8a8 (7.03:1)

## 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/00212d-9cb5c4-df4e6e-1f232d-e9f1ef?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: "#00212d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.