# #0551eb

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

## Values

- Hex: `#0551eb`
- RGB: rgb(5, 81, 235)
- HSL: hsl(220, 96%, 47%)
- OKLCH: oklch(0.508 0.24 262.6)
- Relative luminance: 0.1192
- Nearest named color: C64 Blue (#003aff, Δ 4.819) — https://brandsweets.com/colors/c64-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0551eb

## Tints & shades

- Tints (toward white): #0f5dfa, #286efb, #417ffb, #5a90fc, #78a4fc, #91b5fd, #aac6fd, #c3d7fe, #dce7fe, #f5f8ff
- Shades (toward black): #044bd7, #0442be, #033baa, #033496, #032d82, #022469, #021d55, #011741, #010e28, #000714

## Harmonies

- Complementary: #eb9e05
- Analogous: #05c5eb, #2b05eb
- Triadic: #eb0551, #51eb05
- Split-complementary: #eb2b05, #c5eb05
- Tetradic: #eb05c5, #eb9e05, #05eb2b

## Colors that go with #0551eb

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 #0551eb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0551eb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Coinbase (https://brandsweets.com/colors/brands/coinbase), Chase (https://brandsweets.com/colors/brands/chase-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), WWE (https://brandsweets.com/colors/brands/wwe-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #0551eb in 7 real palettes, including Walmart's brand system and NBA's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0551eb: 12 real palettes, including NHL's brand system and Oreo's brand system, as the accent. Seen in: NHL (https://brandsweets.com/colors/brands/nhl-com), Oreo (https://brandsweets.com/colors/brands/oreo-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Zillow (https://brandsweets.com/colors/brands/zillow-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0551eb: 10 real palettes, including Roblox's brand system and NBA's brand system, as the supporting colour. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), NBA (https://brandsweets.com/colors/brands/nba-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #0551eb: 4 real palettes, including Warp's brand system and Elastic's brand system, as the lead colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #0551eb: 11 real palettes, including Coursera's brand system and OnePlus's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), OnePlus (https://brandsweets.com/colors/brands/oneplus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #0551eb: 5 real palettes, including Bose's brand system and Nissan's brand system, as the accent. Seen in: Bose (https://brandsweets.com/colors/brands/bose-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), MLB (https://brandsweets.com/colors/brands/mlb-com), 3M (https://brandsweets.com/colors/brands/3m-com). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 6.21:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #044bd7 (7.02:1)
- On black (#000000): 3.38:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #236bfb (4.57:1); AA: background → #dedede (4.61:1); AAA: text → #5f93fc (7.07:1)

## Brands using this color

- **NHL** — secondary #0055e9 (Δ 0.863) — https://brandsweets.com/colors/brands/nhl-com
- **Walmart** — primary #0453e4 (Δ 1.129) — https://brandsweets.com/colors/brands/walmart-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/0551eb-9ca5c4-df694e-211f2d-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: "#0551eb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.