# #556dce

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

## Values

- Hex: `#556dce`
- RGB: rgb(85, 109, 206)
- HSL: hsl(228, 55%, 57%)
- OKLCH: oklch(0.565 0.152 270.5)
- Relative luminance: 0.1732
- Nearest named color: God of Rain (#4466cc, Δ 2.899) — https://brandsweets.com/colors/god-of-rain
- Moods: cool, modern
- Page: https://brandsweets.com/colors/556dce

## Tints & shades

- Tints (toward white): #657bd2, #7588d7, #8496db, #94a3e0, #a8b4e6, #b8c2ea, #c8d0ef, #d7ddf4, #e7ebf8, #f7f8fd
- Shades (toward black): #415cc8, #354fb6, #2f46a2, #293e8e, #24357b, #1d2b63, #17224f, #111a3b, #0a0f24, #050710

## Harmonies

- Complementary: #ceb655
- Analogous: #55a9ce, #7955ce
- Triadic: #ce556d, #6dce55
- Split-complementary: #ce7955, #a9ce55
- Tetradic: #ce55a9, #ceb655, #55ce79

## Colors that go with #556dce

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 #556dce: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), 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). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #556dce — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), 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). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #556dce in 12 real palettes, including Wikipedia's brand system and Warner Bros.'s brand system, as the accent. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Pixar's brand system and Qualcomm's brand system put Blue beside #556dce, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #556dce: 12 real palettes, including Intel's brand system and Carrefour's brand system, as the lead colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #556dce: 6 real palettes, including Coca-Cola's brand system and NBA's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #556dce in 17 real palettes, including Marvel's brand system and Pizza Hut's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #556dce: 8 real palettes, including Astro's brand system and Calm's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Calm (https://brandsweets.com/colors/brands/calm-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 4.7:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #354fb6 (7.13:1)
- On black (#000000): 4.46:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #5971cf (4.69:1); AA: background → #fafafa (4.51:1); AAA: text → #8192da (7.06:1)

## Brands using this color

- **Linear** — primary #5e6ad2 (Δ 1.48) — https://brandsweets.com/colors/brands/linear

## 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/556dce-9c9fc4-df7c4e-231f2d-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: "#556dce" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.