Color

#587ad0

#587ad0
hex#587ad0
rgbrgb(88, 122, 208)
hslhsl(223, 56%, 58%)
oklchoklch(0.595 0.137 266.1)
Closest name: Flood (#6677bb)Relative luminance 0.2055

Colors that go with #587ad0

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 →

#d0ae58

#58b6d0 · #7258d0

#d0587a · #7ad058

Split-complementary

Open in tool →

#d07258 · #b6d058

#d058b6 · #d0ae58 · #58d072

Contrast

#587ad0 as textRatioAAAA largeAAAFix
Aaon white
4.11:1failpassfail
  • AA: use #4c70cd as the text (4.66:1)
  • AAA: use #3053ab as the text (7.12:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.11:1passpassfail
  • AAA: use #7c96da as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #587ad0 as the background.

Brands using this color

Fonts for this mood

#587ad0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #587ad0
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 #587ad0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/587ad0-9ca3c4-df704e-211f2d-e9eff1?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