Color

#1b032a

#1b032a
hex#1b032a
rgbrgb(27, 3, 42)
hslhsl(277, 87%, 9%)
oklchoklch(0.177 0.078 309.3)
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 →

#122b03

#08032b · #2b0326

#2b1c03 · #032b1c

Split-complementary

Open in tool →

#262b03 · #032b08

#2b0803 · #122b03 · #03262b

Contrast

#1b032a as textRatioAAAA largeAAAFix
Aaon white
19.21:1passpasspassPasses AAA — no fix needed.
Aaon black
1.09:1failfailfail
  • AA: use #aa37f1 as the text (4.53:1)
  • AAA: use #c475f5 as the text (7.21:1)
  • AA: or shift the background to #7d7d7d (4.67:1)
  • AAA: or shift the background to #9e9e9e (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 #1b032a 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

#1b032a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b032a
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 #1b032a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b032a-b99cc4-bdcb62-2d1f2c-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