Color

#588ef3

#588ef3
hex#588ef3
rgbrgb(88, 142, 243)
hslhsl(219, 87%, 65%)
oklchoklch(0.658 0.161 261.8)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.2789

Colors that go with #588ef3

Charcoal, Tomato 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3bd58

#58dcf3 · #6f58f3

#f3588e · #8ef358

Split-complementary

Open in tool →

#f36f58 · #dcf358

#f358dc · #f3bd58 · #58f36f

Contrast

#588ef3 as textRatioAAAA largeAAAFix
Aaon white
3.19:1failpassfail
  • AA: use #286ef0 as the text (4.59:1)
  • AAA: use #0e4fc8 as the text (7.07:1)
  • AA: or shift the background to #292929 (4.56:1)
Aaon black
6.58:1passpassfail
  • AAA: use #6295f4 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #588ef3 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

#588ef3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #588ef3
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 #588ef3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/588ef3-9ca5c4-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