Color

#850004

#850004
hex#850004
rgbrgb(133, 0, 4)
hslhsl(358, 100%, 26%)
oklchoklch(0.388 0.159 28.3)
Closest name: Bloodthirsty (#880011)Relative luminance 0.05

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#008580

#850047 · #853e00

#048500 · #000485

Split-complementary

Open in tool →

#00853e · #004785

#478500 · #008580 · #3e0085

Contrast

#850004 as textRatioAAAA largeAAAFix
Aaon white
10.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #eb0008 as the text (4.54:1)
  • AAA: use #ff6166 as the text (7.15:1)
  • AA: or shift the background to #ababab (4.57:1)
  • AAA: or shift the background to #d4d4d4 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #850004 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

#850004 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #850004
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #850004 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/850004-c49f9c-62cb95-2d251f-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