Color

#370b2f

#370b2f
hex#370b2f
rgbrgb(55, 11, 47)
hslhsl(311, 67%, 13%)
oklchoklch(0.244 0.085 336)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0126

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0b3713

#290b37 · #370b19

#2f370b · #0b2f37

Split-complementary

Open in tool →

#19370b · #0b3729

#37290b · #0b3713 · #0b1937

Contrast

#370b2f as textRatioAAAA largeAAAFix
Aaon white
16.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #d129b2 as the text (4.67:1)
  • AAA: use #e26acc as the text (7.17:1)
  • AA: or shift the background to #858585 (4.55:1)
  • AAA: or shift the background to #a8a8a8 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #370b2f 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

#370b2f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #370b2f
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 #370b2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/370b2f-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