Color

#587bee

#587bee
hex#587bee
rgbrgb(88, 123, 238)
hslhsl(226, 82%, 64%)
oklchoklch(0.616 0.177 268.1)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2241

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eecb58

#58c6ee · #8058ee

#ee587b · #7bee58

Split-complementary

Open in tool →

#ee8058 · #c6ee58

#ee58c6 · #eecb58 · #58ee80

Contrast

#587bee as textRatioAAAA largeAAAFix
Aaon white
3.83:1failpassfail
  • AA: use #456ced as the text (4.54:1)
  • AAA: use #1645df as the text (7.12:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.48:1passpassfail
  • AAA: use #7491f1 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 #587bee as the background.

Brands using this color

Fonts for this mood

#587bee reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #587bee
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #587bee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/587bee-9ca1c4-df774e-221f2d-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