Color

#37012d

#37012d
hex#37012d
rgbrgb(55, 1, 45)
hslhsl(311, 96%, 11%)
oklchoklch(0.23 0.099 337.4)
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 →

#01370b

#260137 · #370112

#2d3701 · #012d37

Split-complementary

Open in tool →

#123701 · #013726

#372601 · #01370b · #011237

Contrast

#37012d as textRatioAAAA largeAAAFix
Aaon white
17.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #d704b0 as the text (4.53:1)
  • AAA: use #fb4bdb as the text (7.13:1)
  • AA: or shift the background to #828282 (4.54:1)
  • AAA: or shift the background to #a6a6a6 (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 #37012d 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

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

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

tool url/palettes/new/37012d-c19fb7-82cb62-2d1f25-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