Color

#1d0029

#1d0029
hex#1d0029
rgbrgb(29, 0, 41)
hslhsl(282, 100%, 8%)
oklchoklch(0.173 0.086 314.4)
Closest name: Black Sabbath (#220022)Relative luminance 0.0042

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0c2900

#080029 · #290021

#291d00 · #00291d

Split-complementary

Open in tool →

#212900 · #002908

#290800 · #0c2900 · #002129

Contrast

#1d0029 as textRatioAAAA largeAAAFix
Aaon white
19.37:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #b70fff as the text (4.53:1)
  • AAA: use #d166ff as the text (7.06:1)
  • AA: or shift the background to #7a7a7a (4.51:1)
  • AAA: or shift the background to #9c9c9c (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d0029 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

#1d0029 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d0029
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 #1d0029 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d0029-ba9fc1-b4cb62-2d1f2b-ebe9f1?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