Color

#596df3

#596df3
hex#596df3
rgbrgb(89, 109, 243)
hslhsl(232, 87%, 65%)
oklchoklch(0.593 0.2 272.4)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1953

Colors that go with #596df3

Charcoal, Crimson and Sea Green 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 →

#f3df58

#58baf3 · #9158f3

#f3586d · #6df358

Split-complementary

Open in tool →

#f39158 · #baf358

#f358ba · #f3df58 · #58f391

Contrast

#596df3 as textRatioAAAA largeAAAFix
Aaon white
4.28:1failpassfail
  • AA: use #4f64f3 as the text (4.72:1)
  • AAA: use #1f3bef as the text (7.17:1)
  • AA: or shift the background to #0d0d0d (4.54:1)
Aaon black
4.91:1passpassfail
  • AAA: use #7e8ef6 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #596df3 as the background.

Brands using this color

Fonts for this mood

#596df3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #596df3
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 #596df3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/596df3-9c9dc4-df864e-231f2d-e9eef1?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