Color

#556cbe

#556cbe
hex#556cbe
rgbrgb(85, 108, 190)
hslhsl(227, 45%, 54%)
oklchoklch(0.553 0.13 269.9)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1637

Colors that go with #556cbe

Charcoal, Sea Green and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bea855

#55a1be · #7355be

#be556c · #6cbe55

Split-complementary

Open in tool →

#be7355 · #a1be55

#be55a1 · #bea855 · #55be73

Contrast

#556cbe as textRatioAAAA largeAAAFix
Aaon white
4.91:1passpassfail
  • AAA: use #3c529f as the text (7.24:1)
Aaon black
4.27:1failpassfail
  • AA: use #5c72c1 as the text (4.63:1)
  • AAA: use #8595d1 as the text (7.22:1)
  • AA: or shift the background to #f5f5f5 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #556cbe as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#556cbe reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #556cbe
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #556cbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/556cbe-9ca0c4-df7a4e-221f2d-e9eff1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md