Color

#37012e

#37012e
hex#37012e
rgbrgb(55, 1, 46)
hslhsl(310, 96%, 11%)
oklchoklch(0.231 0.1 336.4)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0103

Tints & shades

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

Harmonies

Complementary

Open in tool →

#01370a

#250137 · #370113

#2e3701 · #012e37

Split-complementary

Open in tool →

#133701 · #013725

#372501 · #01370a · #011337

Contrast

#37012e as textRatioAAAA largeAAAFix
Aaon white
17.41:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #d704b4 as the text (4.57:1)
  • AAA: use #fb46dd as the text (7.02:1)
  • AA: or shift the background to #828282 (4.53:1)
  • AAA: or shift the background to #a6a6a6 (7.15:1)

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

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

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

tool url/palettes/new/37012e-c19fb7-83cb62-2d1f25-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