Color

#1b032b

#1b032b
hex#1b032b
rgbrgb(27, 3, 43)
hslhsl(276, 87%, 9%)
oklchoklch(0.178 0.079 308.3)
Closest name: Coal Mine (#220033)Relative luminance 0.0047

Tints & shades

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

Harmonies

Complementary

Open in tool →

#132b03

#07032b · #2b0327

#2b1b03 · #032b1b

Split-complementary

Open in tool →

#272b03 · #032b07

#2b0703 · #132b03 · #03272b

Contrast

#1b032b as textRatioAAAA largeAAAFix
Aaon white
19.19:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #a93bf1 as the text (4.58:1)
  • AAA: use #c275f5 as the text (7.16:1)
  • AA: or shift the background to #7d7d7d (4.66:1)
  • AAA: or shift the background to #9e9e9e (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b032b 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

#1b032b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b032b
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 #1b032b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b032b-b99cc4-bfcb62-2d1f2d-eae9f1?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