# #102b4c

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

## Values

- Hex: `#102b4c`
- RGB: rgb(16, 43, 76)
- HSL: hsl(213, 65%, 18%)
- OKLCH: oklch(0.287 0.069 255)
- Relative luminance: 0.0236
- Nearest named color: Midnight Ocean (#0f2d4d, Δ 0.64) — https://brandsweets.com/colors/midnight-ocean
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/102b4c

## Tints & shades

- Tints (toward white): #173e6d, #1e518f, #2564b1, #2d77d2, #4e8dda, #70a3e1, #92b8e8, #b3ceef, #d5e4f6, #f7fafd
- Shades (toward black): #0f2948, #0d243f, #0c213b, #0b1d32, #0a1a2e, #09182a, #071322, #06111d, #040c15, #040a11

## Harmonies

- Complementary: #4c3110
- Analogous: #10494c, #13104c
- Triadic: #4c102b, #2b4c10
- Split-complementary: #4c1310, #494c10
- Tetradic: #4c1049, #4c3110, #104c13

## Colors that go with #102b4c

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 #102b4c: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), CeraVe (https://brandsweets.com/colors/brands/cerave-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com), Squarespace (https://brandsweets.com/colors/brands/squarespace-com). — https://brandsweets.com/colors/charcoal
- **Firebrick** #b22222 [harmony, pool: triadic] — Firebrick completes a triad with #102b4c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: MLB (https://brandsweets.com/colors/brands/mlb-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Vodafone (https://brandsweets.com/colors/brands/vodafone-com), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #102b4c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Subaru (https://brandsweets.com/colors/brands/subaru-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #102b4c on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #102b4c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), GitLab (https://brandsweets.com/colors/brands/gitlab), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #102b4c'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), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), N26 (https://brandsweets.com/colors/brands/n26-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #102b4c in 10 real palettes, including Beach Hut and Southwest Airlines's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 19 real palettes, including Monzo's brand system and Sketch's brand system put Blue beside #102b4c, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 14.27:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.47:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2c75ce (4.54:1); AA: background → #919191 (4.53:1); AAA: text → #5f98dd (7.02:1); AAA: background → #b8b8b8 (7.19:1)

## Brands using this color

- **Plaid** — secondary #02294b (Δ 1.431) — https://brandsweets.com/colors/brands/plaid-com
- **American Eagle** — secondary #182c52 (Δ 1.484) — https://brandsweets.com/colors/brands/ae-com
- **Skechers** — primary #062849 (Δ 1.493) — https://brandsweets.com/colors/brands/skechers-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/102b4c-9ca9c4-df584e-1f202d-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: "#102b4c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.