Color

#990000

#990000
hex#990000
rgbrgb(153, 0, 0)
hslhsl(0, 100%, 30%)
oklchoklch(0.429 0.176 29.2)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0677

Tints & shades

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

Harmonies

Complementary

Open in tool →

#009999

#99004d · #994d00

#009900 · #000099

Split-complementary

Open in tool →

#00994d · #004d99

#4d9900 · #009999 · #4d0099

Contrast

#990000 as textRatioAAAA largeAAAFix
Aaon white
8.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #eb0000 as the text (4.53:1)
  • AAA: use #ff6161 as the text (7.13:1)
  • AA: or shift the background to #bababa (4.6:1)
  • AAA: or shift the background to #e6e6e6 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #990000 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

#990000 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #990000
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 #990000 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/990000-c4a19c-62cb98-2d251f-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