Color

#588dee

#588dee
hex#588dee
rgbrgb(88, 141, 238)
hslhsl(219, 82%, 64%)
oklchoklch(0.653 0.156 261.5)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.273

Colors that go with #588dee

Charcoal, Amber and Blue 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 →

#eeba58

#58d8ee · #6f58ee

#ee588d · #8dee58

Split-complementary

Open in tool →

#ee6f58 · #d8ee58

#ee58d8 · #eeba58 · #58ee6f

Contrast

#588dee as textRatioAAAA largeAAAFix
Aaon white
3.25:1failpassfail
  • AA: use #2e70ea as the text (4.54:1)
  • AAA: use #1351c3 as the text (7.02:1)
  • AA: or shift the background to #262626 (4.66:1)
Aaon black
6.46:1passpassfail
  • AAA: use #6696f0 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #588dee 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

#588dee reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #588dee
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 #588dee and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/588dee-9ca5c4-df664e-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