Color

#599fa1

#599fa1
hex#599fa1
rgbrgb(89, 159, 161)
hslhsl(182, 29%, 49%)
oklchoklch(0.658 0.071 198)
Closest name: cadetblue (#5f9ea0)Relative luminance 0.2949

Colors that go with #599fa1

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 #599fa1

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a15b59

#59a17f · #597ba1

#a1599f · #9fa159

Split-complementary

Open in tool →

#a1597b · #a17f59

#7f59a1 · #a15b59 · #7ba159

Contrast

#599fa1 as textRatioAAAA largeAAAFix
Aaon white
3.04:1failpassfail
  • AA: use #477e80 as the text (4.6:1)
  • AAA: use #355e5f as the text (7.2:1)
  • AA: or shift the background to #2b2b2b (4.65:1)
Aaon black
6.9:1passpassfail
  • AAA: use #5ba2a4 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #599fa1 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 #599fa1
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 #599fa1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/599fa1-a2babe-d45990-1f272d-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