Color

#51004e

#51004e
hex#51004e
rgbrgb(81, 0, 78)
hslhsl(302, 100%, 16%)
oklchoklch(0.303 0.138 330.2)
Closest name: Cloak and Dagger (#550055)Relative luminance 0.023

Colors that go with #51004e

Sea Green, Blue and Cream 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 →

#005203

#2c0052 · #520026

#4f5200 · #004f52

Split-complementary

Open in tool →

#265200 · #00522c

#522c00 · #005203 · #002652

Contrast

#51004e as textRatioAAAA largeAAAFix
Aaon white
14.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.46:1failfailfail
  • AA: use #d100ca as the text (4.56:1)
  • AAA: use #ff33f8 as the text (7.08:1)
  • AA: or shift the background to #919191 (4.56:1)
  • AAA: or shift the background to #b5b5b5 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51004e 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

#51004e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51004e
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 #51004e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51004e-c19fbc-91cb62-2d1f27-eee9f1?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