# #101d75

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

## Values

- Hex: `#101d75`
- RGB: rgb(16, 29, 117)
- HSL: hsl(232, 76%, 26%)
- OKLCH: oklch(0.296 0.148 267.9)
- Relative luminance: 0.0227
- Nearest named color: midnightblue (#191970, Δ 1.528) — https://brandsweets.com/colors/midnightblue
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/101d75

## Tints & shades

- Tints (toward white): #142594, #182db4, #1d36d7, #354ce3, #5468e8, #7484ec, #93a0f0, #b7bff5, #d7dbf9, #f6f7fe
- Shades (toward black): #0f1b6c, #0d1963, #0c1555, #0a134c, #091143, #080f3a, #070c31, #050924, #04071b, #020512

## Harmonies

- Complementary: #756710
- Analogous: #105075, #351075
- Triadic: #75101d, #1d7510
- Split-complementary: #753510, #507510
- Tetradic: #751050, #756710, #107535

## Colors that go with #101d75

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 #101d75: softer than #000 and cool enough to feel like part of the same palette. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), CeraVe (https://brandsweets.com/colors/brands/cerave-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #101d75's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Glacier (https://brandsweets.com/palettes/cool#glacier), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 5 real palettes, including Alaska Airlines's brand system and Monzo's brand system put Blue beside #101d75, as the accent. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Sketch (https://brandsweets.com/colors/brands/sketch-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #101d75: 5 real palettes, including Purina Pro Plan's brand system and Blue Mono, as the accent. Seen in: Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Glacier (https://brandsweets.com/palettes/cool#glacier), Tide (https://brandsweets.com/colors/brands/tide-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #101d75 in 5 real palettes, including Nintendo's brand system and Casper Sleep's brand system, as the supporting colour. Seen in: Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #101d75: 11 real palettes, including Bank of America's brand system and Panasonic's brand system, as the accent. Seen in: Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Panasonic (https://brandsweets.com/colors/brands/panasonic-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Skechers (https://brandsweets.com/colors/brands/skechers-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #101d75 in 8 real palettes, including Discord's brand system and Confluent's brand system, as the lead colour. Seen in: Discord (https://brandsweets.com/colors/brands/discord), Confluent (https://brandsweets.com/colors/brands/confluent-io), Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/royalblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #101d75 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 14.44:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.45:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5468e8 (4.52:1); AA: background → #919191 (4.58:1); AAA: text → #8190ee (7.16:1); AAA: background → #b5b5b5 (7.04:1)

## Brands using this color

- **Visa** — primary #1a1e73 (Δ 1.316) — https://brandsweets.com/colors/brands/visa-com
- **Visa** — secondary #1a1f72 (Δ 1.448) — https://brandsweets.com/colors/brands/visa-com
- **Crest** — secondary #001c71 (Δ 1.683) — https://brandsweets.com/colors/brands/crest-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/101d75-9c9dc4-df864e-231f2d-e9eef1?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: "#101d75" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.