Color

#51295b

#51295b
hex#51295b
rgbrgb(81, 41, 91)
hslhsl(288, 38%, 26%)
oklchoklch(0.356 0.095 319.3)
Closest name: Acai (#48295b)Relative luminance 0.0409

Colors that go with #51295b

Sea Green, Blue and Crimson 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 →

#335b29

#38295b · #5b294c

#5b5129 · #295b51

Split-complementary

Open in tool →

#4c5b29 · #295b38

#5b3829 · #335b29 · #294c5b

Contrast

#51295b as textRatioAAAA largeAAAFix
Aaon white
11.55:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #a25ab5 as the text (4.67:1)
  • AAA: use #ba84c8 as the text (7.22:1)
  • AA: or shift the background to #a3a3a3 (4.58:1)
  • AAA: or shift the background to #cccccc (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51295b 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

#51295b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51295b
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 #51295b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51295b-be9fc1-aacb62-2d1f2a-ece9f1?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