Color

#37012c

#37012c
hex#37012c
rgbrgb(55, 1, 44)
hslhsl(312, 96%, 11%)
oklchoklch(0.23 0.098 338.4)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0102

Tints & shades

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

Harmonies

Complementary

Open in tool →

#01370c

#270137 · #370111

#2c3701 · #012c37

Split-complementary

Open in tool →

#113701 · #013727

#372701 · #01370c · #011137

Contrast

#37012c as textRatioAAAA largeAAAFix
Aaon white
17.45:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #d704ad as the text (4.51:1)
  • AAA: use #fb4bd8 as the text (7.1:1)
  • AA: or shift the background to #828282 (4.54:1)
  • AAA: or shift the background to #a6a6a6 (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 #37012c 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

#37012c reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37012c
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 #37012c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37012c-c19fb6-80cb62-2d1f24-efe9f1?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