Color

#37154c

#37154c
hex#37154c
rgbrgb(55, 21, 76)
hslhsl(277, 57%, 19%)
oklchoklch(0.278 0.1 309.8)
Closest name: Fabric of Space (#341758)Relative luminance 0.0187

Colors that go with #37154c

Charcoal, Sea Green and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2a4c15

#1b154c · #4c1546

#4c3715 · #154c37

Split-complementary

Open in tool →

#464c15 · #154c1b

#4c1b15 · #2a4c15 · #15464c

Contrast

#37154c as textRatioAAAA largeAAAFix
Aaon white
15.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #a053d0 as the text (4.64:1)
  • AAA: use #b87fdc as the text (7.11:1)
  • AA: or shift the background to #8c8c8c (4.54:1)
  • AAA: or shift the background to #b0b0b0 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37154c 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

#37154c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37154c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #37154c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37154c-b99cc4-bdcb62-2d1f2c-eae9f1?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