Color

#586df9

#586df9
hex#586df9
rgbrgb(88, 109, 249)
hslhsl(232, 93%, 66%)
oklchoklch(0.597 0.209 272)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.1985

Colors that go with #586df9

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 →

#f9e358

#58bef9 · #9358f9

#f9586d · #6df958

Split-complementary

Open in tool →

#f99358 · #bef958

#f958be · #f9e358 · #58f993

Contrast

#586df9 as textRatioAAAA largeAAAFix
Aaon white
4.23:1failpassfail
  • AA: use #4e65f9 as the text (4.61:1)
  • AAA: use #1835f7 as the text (7.26:1)
  • AA: or shift the background to #0f0f0f (4.54:1)
Aaon black
4.97:1passpassfail
  • AAA: use #7f8ffa as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #586df9 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

#586df9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #586df9
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 #586df9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/586df9-9c9dc4-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