# #003dd6

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

## Values

- Hex: `#003dd6`
- RGB: rgb(0, 61, 214)
- HSL: hsl(223, 100%, 42%)
- OKLCH: oklch(0.452 0.237 263.4)
- Relative luminance: 0.0819
- Nearest named color: Brutally Blue (#0022dd, Δ 4.057) — https://brandsweets.com/colors/brutally-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/003dd6

## Tints & shades

- Tints (toward white): #0045f5, #0f53ff, #2e69ff, #477bff, #6691ff, #85a7ff, #9ebaff, #bdcfff, #d6e2ff, #f5f8ff
- Shades (toward black): #0037c2, #0031ad, #002d9e, #00278a, #002175, #001b61, #00164d, #00113d, #000c29, #000614

## Harmonies

- Complementary: #d69a00
- Analogous: #00a8d6, #2e00d6
- Triadic: #d6003d, #3dd600
- Split-complementary: #d62e00, #a8d600
- Tetradic: #d600a8, #d69a00, #00d62e

## Colors that go with #003dd6

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 #003dd6: softer than #000 and cool enough to feel like part of the same palette. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #003dd6 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #003dd6 in 5 real palettes, including Walmart's brand system and Binance's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Binance (https://brandsweets.com/colors/brands/binance-com), NBA (https://brandsweets.com/colors/brands/nba-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #003dd6: 9 real palettes, including Qualcomm's brand system and Blue Mono, as the supporting colour. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #003dd6: 10 real palettes, including Coursera's brand system and Cargo's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Cargo (https://brandsweets.com/colors/brands/cargo-site), Readymag (https://brandsweets.com/colors/brands/readymag-com), Samsung (https://brandsweets.com/colors/brands/samsung-com). — https://brandsweets.com/colors/dodgerblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #003dd6: 5 real palettes, including 3M's brand system and MLB's brand system, as the supporting colour. Seen in: 3M (https://brandsweets.com/colors/brands/3m-com), MLB (https://brandsweets.com/colors/brands/mlb-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), Bose (https://brandsweets.com/colors/brands/bose-com). — https://brandsweets.com/colors/firebrick
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #003dd6 in 7 real palettes, including Spotify's brand system and Unity's brand system, as the lead colour. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 16 real palettes, including MLB's brand system and Purina Pro Plan's brand system put Midnight Blue beside #003dd6, as the lead colour. Seen in: MLB (https://brandsweets.com/colors/brands/mlb-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Air France (https://brandsweets.com/colors/brands/airfrance-com), Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 7.96:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.64:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2e69ff (4.58:1); AA: background → #c4c4c4 (4.56:1); AAA: text → #6691ff (7.06:1); AAA: background → #f2f2f2 (7.11:1)

## Brands using this color

- **Zillow** — secondary #0444d4 (Δ 1.434) — https://brandsweets.com/colors/brands/zillow-com
- **Zillow** — primary #0443dc (Δ 1.648) — https://brandsweets.com/colors/brands/zillow-com
- **Behance** — secondary #003ecb (Δ 1.729) — https://brandsweets.com/colors/brands/behance-net

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/003dd6-9ca3c4-df704e-211f2d-e9eff1?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: "#003dd6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.