Color

#599fab

#599fab
hex#599fab
rgbrgb(89, 159, 171)
hslhsl(189, 33%, 51%)
oklchoklch(0.661 0.073 209.8)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.2986

Colors that go with #599fab

Charcoal, Terracotta and Blush Pink 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 #599fab

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab6559

#59ab8e · #5976ab

#ab599f · #9fab59

Split-complementary

Open in tool →

#ab5976 · #ab8e59

#8e59ab · #ab6559 · #76ab59

Contrast

#599fab as textRatioAAAA largeAAAFix
Aaon white
3.01:1failpassfail
  • AA: use #447e88 as the text (4.58:1)
  • AAA: use #335e66 as the text (7.16:1)
  • AA: or shift the background to #2e2e2e (4.51:1)
Aaon black
6.97:1passpassfail
  • AAA: use #5ca1ad as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #599fab as the background.

Brands using this color

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

mcpConnect your agent — build around #599fab
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 #599fab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/599fab-a2b7be-df4e7e-1f252d-e9f1ee?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