# #03033f

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

## Values

- Hex: `#03033f`
- RGB: rgb(3, 3, 63)
- HSL: hsl(240, 91%, 13%)
- OKLCH: oklch(0.176 0.109 267.7)
- Relative luminance: 0.0044
- Nearest named color: Endless Galaxy (#000044, Δ 1.452) — https://brandsweets.com/colors/endless-galaxy
- Moods: cool, vivid, dark, technical, modern, luxury, bold
- Page: https://brandsweets.com/colors/03033f

## Tints & shades

- Tints (toward white): #05056b, #070792, #0909be, #0b0be5, #2929f5, #5050f7, #7b7bf9, #a2a2fb, #cecefd, #f5f5ff
- Shades (toward black): #03033a, #030336, #020231, #02022c, #02022c, #020227, #020222, #01011d, #010118, #010113

## Harmonies

- Complementary: #3f3f03
- Analogous: #03213f, #21033f
- Triadic: #3f0303, #033f03
- Split-complementary: #3f2103, #213f03
- Tetradic: #3f0321, #3f3f03, #033f21

## Colors that go with #03033f

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Blue Violet** #8a2be2 [harmony, pool: analogous] — Blue Violet is #03033f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Twitch (https://brandsweets.com/colors/brands/twitch-tv), 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #03033f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #03033f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Chase (https://brandsweets.com/colors/brands/chase-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #03033f'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), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #03033f in 11 real palettes, including Southwest Airlines's brand system and Blueprint, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Penpot's brand system and League of Legends's brand system put Blue beside #03033f, as the supporting colour. Seen in: Penpot (https://brandsweets.com/colors/brands/penpot-app), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Kia (https://brandsweets.com/colors/brands/kia-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #03033f: 4 real palettes, including SoFi's brand system and Arctic, as the supporting colour. Seen in: SoFi (https://brandsweets.com/colors/brands/sofi-com), Arctic (https://brandsweets.com/palettes/clean#arctic), Estate (https://brandsweets.com/palettes/luxury#estate), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/cadetblue
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Allbirds's brand system and Midnight Luxe put Champagne beside #03033f, as the accent. Seen in: Allbirds (https://brandsweets.com/colors/brands/allbirds-com), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Bramble (https://brandsweets.com/palettes/muted#bramble), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com). — https://brandsweets.com/colors/champagne

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

- On white (#ffffff): 19.29:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.09:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6363f8 (4.67:1); AA: background → #7d7d7d (4.69:1); AAA: text → #8a8af9 (7.08:1); AAA: background → #9c9c9c (7.03:1)

## Brands using this color

- **Paramount+** — secondary #000a3c (Δ 1.589) — https://brandsweets.com/colors/brands/paramountplus-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/03033f-a19cc4-df994e-251f2d-e9edf1?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: "#03033f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.