Color

#582da9

#582da9
hex#582da9
rgbrgb(88, 45, 169)
hslhsl(261, 58%, 42%)
oklchoklch(0.43 0.185 292.8)
Closest name: rebeccapurple (#663399)Relative luminance 0.0682

Colors that go with #582da9

Royal Blue, Blue and Charcoal 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 →

#7ea92d

#2d40a9 · #972da9

#a9582d · #2da958

Split-complementary

Open in tool →

#a9972d · #40a92d

#a92d40 · #7ea92d · #2da997

Contrast

#582da9 as textRatioAAAA largeAAAFix
Aaon white
8.89:1passpasspassPasses AAA — no fix needed.
Aaon black
2.36:1failfailfail
  • AA: use #875ed4 as the text (4.58:1)
  • AAA: use #a586df as the text (7.08:1)
  • AA: or shift the background to #bababa (4.58:1)
  • AAA: or shift the background to #e6e6e6 (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 #582da9 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

#582da9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #582da9
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 #582da9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/582da9-af9cc4-dfcb4e-2a1f2d-e9eaf1?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