# #5551d2

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

## Values

- Hex: `#5551d2`
- RGB: rgb(85, 81, 210)
- HSL: hsl(242, 59%, 57%)
- OKLCH: oklch(0.516 0.193 278.6)
- Relative luminance: 0.1247
- Nearest named color: Arcane Brew (#5260e1, Δ 4.01) — https://brandsweets.com/colors/arcane-brew
- Moods: cool, modern
- Page: https://brandsweets.com/colors/5551d2

## Tints & shades

- Tints (toward white): #6561d6, #7571da, #8481df, #9492e3, #a8a6e8, #b8b6ec, #c8c6f0, #d7d6f5, #e7e7f9, #f7f7fd
- Shades (toward black): #413ccd, #3530bb, #2f2ba6, #292692, #24207e, #1d1a65, #171551, #11103d, #0a0924, #050410

## Harmonies

- Complementary: #ced251
- Analogous: #518dd2, #9651d2
- Triadic: #d25551, #51d255
- Split-complementary: #d29651, #8dd251
- Tetradic: #d2518d, #ced251, #51d296

## Colors that go with #5551d2

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 #5551d2: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #5551d2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #5551d2 in 6 real palettes, including Warner Bros.'s brand system and Wikipedia's brand system, as the accent. Seen in: Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Pixar's brand system and Signal's brand system put Blue beside #5551d2, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Signal (https://brandsweets.com/colors/brands/signal-org), Headspace (https://brandsweets.com/colors/brands/headspace-com), Zillow (https://brandsweets.com/colors/brands/zillow-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #5551d2: 10 real palettes, including Warbyparker's brand system and NHL's brand system, as the supporting colour. Seen in: Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Unilever (https://brandsweets.com/colors/brands/unilever-com), Nokia (https://brandsweets.com/colors/brands/nokia-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #5551d2: 8 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), NBA (https://brandsweets.com/colors/brands/nba-com), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #5551d2 in 18 real palettes, including Netflix's brand system and Ulta Beauty's brand system, as the lead colour. Seen in: Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/crimson
- **Dark Orchid** #9932cc [harmony, pool: analogous] — Dark Orchid is #5551d2's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/darkorchid

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

- On white (#ffffff): 6.01:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #4540ce (7.3:1)
- On black (#000000): 3.49:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6d69d8 (4.66:1); AA: background → #e0e0e0 (4.55:1); AAA: text → #908de2 (7.09:1)

## Fonts for this mood

- 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/5551d2-a29cc4-df9e4e-261f2d-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: "#5551d2" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.