Color

#556aaf

#556aaf
hex#556aaf
rgbrgb(85, 106, 175)
hslhsl(226, 36%, 51%)
oklchoklch(0.54 0.111 269.6)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1533

Colors that go with #556aaf

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 →

#af9a55

#5597af · #6d55af

#af556a · #6aaf55

Split-complementary

Open in tool →

#af6d55 · #97af55

#af5597 · #af9a55 · #55af6d

Contrast

#556aaf as textRatioAAAA largeAAAFix
Aaon white
5.16:1passpassfail
  • AAA: use #43548e as the text (7.25:1)
Aaon black
4.07:1failpassfail
  • AA: use #5f73b4 as the text (4.6:1)
  • AAA: use #8695c6 as the text (7.13:1)
  • AA: or shift the background to #f0f0f0 (4.53:1)

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

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

mcpConnect your agent — build around #556aaf
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 #556aaf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/556aaf-9ca1c4-df774e-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