Color

#587b7e

#587b7e
hex#587b7e
rgbrgb(88, 123, 126)
hslhsl(185, 18%, 42%)
oklchoklch(0.558 0.04 202.7)
Closest name: Blue Blood (#6b7f81)Relative luminance 0.1775

Colors that go with #587b7e

Charcoal, Sienna 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.

Real palettes that use #587b7e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7e5b58

#587e6e · #58687e

#7e587b · #7b7e58

Split-complementary

Open in tool →

#7e5868 · #7e6e58

#6e587e · #7e5b58 · #687e58

Contrast

#587b7e as textRatioAAAA largeAAAFix
Aaon white
4.62:1passpassfail
  • AAA: use #415b5d as the text (7.29:1)
Aaon black
4.55:1passpassfail
  • AAA: use #789da1 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #587b7e 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 #587b7e
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 #587b7e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/587b7e-a2b8be-df4e88-1f262d-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