Color

#51589a

#51589a
hex#51589a
rgbrgb(81, 88, 154)
hslhsl(234, 31%, 46%)
oklchoklch(0.486 0.106 277.1)
Closest name: Dusk (#4e5481)Relative luminance 0.1106

Colors that go with #51589a

Charcoal, Sea Green 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 →

#9a9251

#517d9a · #6e519a

#9a5158 · #589a51

Split-complementary

Open in tool →

#9a6e51 · #7d9a51

#9a517d · #9a9251 · #519a6e

Contrast

#51589a as textRatioAAAA largeAAAFix
Aaon white
6.54:1passpassfail
  • AAA: use #4c5290 as the text (7.2:1)
Aaon black
3.21:1failpassfail
  • AA: use #6970b0 as the text (4.55:1)
  • AAA: use #8d93c3 as the text (7.09:1)
  • AA: or shift the background to #d9d9d9 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51589a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #51589a
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 #51589a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51589a-9d9cc4-df8a4e-241f2d-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