# #00223d

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

## Values

- Hex: `#00223d`
- RGB: rgb(0, 34, 61)
- HSL: hsl(207, 100%, 12%)
- OKLCH: oklch(0.245 0.064 246.9)
- Relative luminance: 0.0148
- Nearest named color: Midnight Mirage (#001f3f, Δ 1.153) — https://brandsweets.com/colors/midnight-mirage
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/00223d

## Tints & shades

- Tints (toward white): #003b6b, #005194, #006bc2, #0081eb, #1a98ff, #47acff, #70bfff, #9ed3ff, #c7e6ff, #f5faff
- Shades (toward black): #001f38, #001c33, #001c33, #00192e, #001629, #001424, #00111f, #00111f, #000e19, #000b14

## Harmonies

- Complementary: #3d1c00
- Analogous: #003d3a, #00033d
- Triadic: #3d0022, #223d00
- Split-complementary: #3d0003, #3d3a00
- Tetradic: #3a003d, #3d1c00, #033d00

## Colors that go with #00223d

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 #00223d: softer than #000 and cool enough to feel like part of the same palette. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #00223d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Chase (https://brandsweets.com/colors/brands/chase-com), Vodafone (https://brandsweets.com/colors/brands/vodafone-com), AliExpress (https://brandsweets.com/colors/brands/aliexpress-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #00223d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: GEICO (https://brandsweets.com/colors/brands/geico-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Cisco (https://brandsweets.com/colors/brands/cisco-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: split] — Rust is a split-complement of #00223d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Gallery (https://brandsweets.com/palettes/editorial#gallery), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Semrush (https://brandsweets.com/colors/brands/semrush-com). — https://brandsweets.com/colors/rust
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #00223d 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), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #00223d'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), Clinic (https://brandsweets.com/palettes/clean#clinic), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #00223d in 18 real palettes, including Southwest Airlines's brand system and Beach Hut, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Monzo's brand system and League of Legends's brand system put Blue beside #00223d, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 16.2:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0076d6 (4.56:1); AA: background → #878787 (4.51:1); AAA: text → #1f9aff (7.12:1); AAA: background → #ababab (7.06:1)

## Brands using this color

- **GEICO** — accent #062342 (Δ 1.219) — https://brandsweets.com/colors/brands/geico-com
- **FIFA** — primary #102139 (Δ 1.662) — https://brandsweets.com/colors/brands/fifa-com
- **MLB** — primary #041e42 (Δ 1.758) — https://brandsweets.com/colors/brands/mlb-com

## Curated palettes containing it

- **Fintech Trust** (cool, clean, modern) — #0b3d91, #4b6a9b, #00a878, #ffffff, #0b1f3a — Navy signals custody and stability; the green accent is money moving the right way. No red anywhere except errors. — tool: https://brandsweets.com/palettes/new/0b3d91-4b6a9b-00a878-ffffff-0b1f3a — collection: https://brandsweets.com/palettes/cool

## 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/00223d-9cadc4-df4e53-1f212d-e9f1f1?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: "#00223d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.