Color

#559aaf

#559aaf
hex#559aaf
rgbrgb(85, 154, 175)
hslhsl(194, 36%, 51%)
oklchoklch(0.649 0.076 219.8)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.2814

Colors that go with #559aaf

Charcoal, Copper and Terracotta 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.

Real palettes that use #559aaf

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af6a55

#55af97 · #556daf

#af559a · #9aaf55

Split-complementary

Open in tool →

#af556d · #af9755

#9755af · #af6a55 · #6daf55

Contrast

#559aaf as textRatioAAAA largeAAAFix
Aaon white
3.17:1failpassfail
  • AA: use #437d8e as the text (4.6:1)
  • AAA: use #335e6c as the text (7.1:1)
  • AA: or shift the background to #292929 (4.59:1)
Aaon black
6.63:1passpassfail
  • AAA: use #5fa0b4 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #559aaf 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

#559aaf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #559aaf
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 #559aaf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/559aaf-9cb6c4-df4e72-1f242d-e9f1ef?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