# #040f67

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

## Values

- Hex: `#040f67`
- RGB: rgb(4, 15, 103)
- HSL: hsl(233, 93%, 21%)
- OKLCH: oklch(0.252 0.148 265.7)
- Relative luminance: 0.0135
- Nearest named color: Dying Storm Blue (#111166, Δ 1.662) — https://brandsweets.com/colors/dying-storm-blue
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/040f67

## Tints & shades

- Tints (toward white): #05158f, #061ab1, #0820d9, #132df6, #3a50f8, #5d6ff9, #8492fb, #abb5fc, #ced3fd, #f5f6ff
- Shades (toward black): #030e5e, #030d59, #030c4f, #020a45, #020a40, #020836, #02072c, #010522, #01041e, #010314

## Harmonies

- Complementary: #675c04
- Analogous: #044167, #2a0467
- Triadic: #67040f, #0f6704
- Split-complementary: #672a04, #416704
- Tetradic: #670441, #675c04, #04672a

## Colors that go with #040f67

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 #040f67: softer than #000 and cool enough to feel like part of the same palette. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), CeraVe (https://brandsweets.com/colors/brands/cerave-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #040f67 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #040f67'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), Plaid (https://brandsweets.com/colors/brands/plaid-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/steelblue
- **Blue** #0000ff [pool] — 4 real palettes, including Penpot's brand system and Monzo's brand system put Blue beside #040f67, as the supporting colour. Seen in: Penpot (https://brandsweets.com/colors/brands/penpot-app), Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #040f67: 4 real palettes, including SoFi's brand system and Open House, as the supporting colour. Seen in: SoFi (https://brandsweets.com/colors/brands/sofi-com), Open House (https://brandsweets.com/palettes/clean#open-house), Arctic (https://brandsweets.com/palettes/clean#arctic), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #040f67: 7 real palettes, including Glacier and Purina Pro Plan's brand system, as the accent. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), MLB (https://brandsweets.com/colors/brands/mlb-com). — https://brandsweets.com/colors/cobalt
- **Denim** #1560bd [pool] — Designers have shipped Denim with #040f67: 12 real palettes, including Bank of America's brand system and British Airways's brand system, as the accent. Seen in: Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), British Airways (https://brandsweets.com/colors/brands/britishairways-com), Skechers (https://brandsweets.com/colors/brands/skechers-com), KLM (https://brandsweets.com/colors/brands/klm-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #040f67 in 8 real palettes, including Spectrum's brand system and Discord's brand system, as the accent. Seen in: Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Discord (https://brandsweets.com/colors/brands/discord), GEICO (https://brandsweets.com/colors/brands/geico-com), Penpot (https://brandsweets.com/colors/brands/penpot-app). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 16.54:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.27:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5366f9 (4.64:1); AA: background → #878787 (4.61:1); AAA: text → #7f8dfa (7.09:1); AAA: background → #ababab (7.2:1)

## 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/040f67-9c9cc4-df884e-241f2d-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: "#040f67" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.