Color

#09031b

#09031b
hex#09031b
rgbrgb(9, 3, 27)
hslhsl(255, 80%, 6%)
oklchoklch(0.132 0.054 292)
Closest name: Obsidian Shard (#060313)Relative luminance 0.002

Tints & shades

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

Harmonies

Complementary

Open in tool →

#151c03

#03091c · #15031c

#1c0903 · #031c09

Split-complementary

Open in tool →

#1c1503 · #091c03

#1c0309 · #151c03 · #031c15

Contrast

#09031b as textRatioAAAA largeAAAFix
Aaon white
20.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.04:1failfailfail
  • AA: use #7e5aed as the text (4.57:1)
  • AAA: use #a288f2 as the text (7.34:1)
  • AA: or shift the background to #787878 (4.57:1)
  • AAA: or shift the background to #999999 (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 #09031b 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

#09031b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #09031b
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 #09031b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/09031b-ab9cc4-dfbd4e-291f2d-e9ebf1?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