Color

#510002

#510002
hex#510002
rgbrgb(81, 0, 2)
hslhsl(359, 100%, 16%)
oklchoklch(0.273 0.112 27.9)
Closest name: Burned (#520b00)Relative luminance 0.0175

Colors that go with #510002

Charcoal, Royal Blue and Sienna 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 →

#005250

#52002a · #522700

#015200 · #000152

Split-complementary

Open in tool →

#005227 · #002a52

#2a5200 · #005250 · #270052

Contrast

#510002 as textRatioAAAA largeAAAFix
Aaon white
15.55:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #eb0004 as the text (4.53:1)
  • AAA: use #ff6164 as the text (7.15:1)
  • AA: or shift the background to #8a8a8a (4.5:1)
  • AAA: or shift the background to #b0b0b0 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #510002 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

#510002 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #510002
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 #510002 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/510002-c4a09c-62cb96-2d251f-f1e9ed?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