Color

#51001e

#51001e
hex#51001e
rgbrgb(81, 0, 30)
hslhsl(338, 100%, 16%)
oklchoklch(0.279 0.112 7.9)
Closest name: What We Do in the Shadows (#441122)Relative luminance 0.0184

Colors that go with #51001e

Charcoal, Steel Blue and Teal 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 →

#005234

#520047 · #520b00

#1e5200 · #001e52

Split-complementary

Open in tool →

#00520b · #004752

#475200 · #005234 · #0b0052

Contrast

#51001e as textRatioAAAA largeAAAFix
Aaon white
15.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #eb0056 as the text (4.67:1)
  • AAA: use #ff5794 as the text (7.04:1)
  • AA: or shift the background to #8c8c8c (4.56:1)
  • AAA: or shift the background to #b0b0b0 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51001e as the background.

Brands using this color

Fonts for this mood

#51001e reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51001e
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 #51001e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51001e-c49ca6-62cb72-2d201f-f1e9f0?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