Color

#587cc6

#587cc6
hex#587cc6
rgbrgb(88, 124, 198)
hslhsl(220, 49%, 56%)
oklchoklch(0.593 0.121 263.5)
Closest name: Flood (#6677bb)Relative luminance 0.2057

Colors that go with #587cc6

Charcoal, Sea Green and Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c6a158

#58b3c6 · #6a58c6

#c6587c · #7cc658

Split-complementary

Open in tool →

#c66a58 · #b3c658

#c658b3 · #c6a158 · #58c66a

Contrast

#587cc6 as textRatioAAAA largeAAAFix
Aaon white
4.11:1failpassfail
  • AA: use #4c74c2 as the text (4.58:1)
  • AAA: use #35579c as the text (7.01:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.11:1passpassfail
  • AAA: use #7a97d1 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 #587cc6 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

#587cc6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #587cc6
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 #587cc6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/587cc6-9ca5c4-df694e-211f2d-e9f0f1?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