Color

#37012f

#37012f
hex#37012f
rgbrgb(55, 1, 47)
hslhsl(309, 96%, 11%)
oklchoklch(0.232 0.101 335.5)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0104

Tints & shades

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

Harmonies

Complementary

Open in tool →

#013709

#240137 · #370114

#2f3701 · #012f37

Split-complementary

Open in tool →

#143701 · #013724

#372401 · #013709 · #011437

Contrast

#37012f as textRatioAAAA largeAAAFix
Aaon white
17.39:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #d704b7 as the text (4.59:1)
  • AAA: use #fb46e0 as the text (7.05:1)
  • AA: or shift the background to #828282 (4.52:1)
  • AAA: or shift the background to #a6a6a6 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37012f 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

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

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

tool url/palettes/new/37012f-c19fb8-85cb62-2d1f25-eee9f1?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