# #0551cc

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

## Values

- Hex: `#0551cc`
- RGB: rgb(5, 81, 204)
- HSL: hsl(217, 95%, 41%)
- OKLCH: oklch(0.479 0.202 261)
- Relative luminance: 0.1028
- Nearest named color: Denim (#1560bd, Δ 4.675) — https://brandsweets.com/colors/denim
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0551cc

## Tints & shades

- Tints (toward white): #065dea, #1069f9, #2e7cfa, #4c8ffa, #6aa2fb, #83b1fc, #a1c4fd, #bed7fd, #d7e6fe, #f5f9ff
- Shades (toward black): #0549b8, #0443a9, #043c95, #033481, #032e72, #02265e, #021e4b, #011637, #011028, #010814

## Harmonies

- Complementary: #cc8005
- Analogous: #05b5cc, #1c05cc
- Triadic: #cc0551, #51cc05
- Split-complementary: #cc1c05, #b5cc05
- Tetradic: #cc05b5, #cc8005, #05cc1c

## Colors that go with #0551cc

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 #0551cc: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0551cc — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Behance (https://brandsweets.com/colors/brands/behance-net), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Steel Blue** #4682b4 [harmony, pool: analogous] — Steel Blue is #0551cc's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: American Express (https://brandsweets.com/colors/brands/americanexpress-com), Discover (https://brandsweets.com/colors/brands/discover-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #0551cc in 7 real palettes, including Walmart's brand system and Warner Bros.'s brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 10 real palettes, including Zillow's brand system and Headspace's brand system put Blue beside #0551cc, as the lead colour. Seen in: Zillow (https://brandsweets.com/colors/brands/zillow-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Activision (https://brandsweets.com/colors/brands/activision-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0551cc: 9 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the supporting colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #0551cc: 7 real palettes, including Venmo's brand system and Warp's brand system, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #0551cc: 10 real palettes, including Coursera's brand system and Apple's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Apple (https://brandsweets.com/colors/brands/apple-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 6.87:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #054fc7 (7.12:1)
- On black (#000000): 3.06:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #156df9 (4.59:1); AA: background → #d1d1d1 (4.5:1); AAA: text → #5695fb (7.09:1)

## Brands using this color

- **Warbyparker** — accent #1050d0 (Δ 0.739) — https://brandsweets.com/colors/brands/warbyparker-com
- **UEFA** — accent #1e4fd0 (Δ 1.242) — https://brandsweets.com/colors/brands/uefa-com
- **Soundcloud** — accent #044dd2 (Δ 1.296) — https://brandsweets.com/colors/brands/soundcloud-com
- **Coursera** — accent #0056d2 (Δ 1.5) — https://brandsweets.com/colors/brands/coursera-org
- **Bank of America** — accent #0053c2 (Δ 1.652) — https://brandsweets.com/colors/brands/bankofamerica-com

## 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/0551cc-9ca7c4-df624e-201f2d-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: "#0551cc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.