Color

#59918f

#59918f
hex#59918f
rgbrgb(89, 145, 143)
hslhsl(178, 24%, 46%)
oklchoklch(0.617 0.059 192.8)
Closest name: Highlands (#449084)Relative luminance 0.2436

Colors that go with #59918f

Charcoal, Copper and Crimson 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 #59918f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#91595b

#599173 · #597791

#905991 · #919059

Split-complementary

Open in tool →

#915977 · #917359

#735991 · #91595b · #779159

Contrast

#59918f as textRatioAAAA largeAAAFix
Aaon white
3.58:1failpassfail
  • AA: use #4e7e7d as the text (4.56:1)
  • AAA: use #3a5f5e as the text (7.05:1)
  • AA: or shift the background to #212121 (4.5:1)
Aaon black
5.87:1passpassfail
  • AAA: use #64a09e as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #59918f 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 #59918f
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 #59918f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/59918f-a2bcbe-d45999-1f282d-e9f1ed?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