Color

#37008a

#37008a
hex#37008a
rgbrgb(55, 0, 138)
hslhsl(264, 100%, 27%)
oklchoklch(0.323 0.186 287.4)
Closest name: Galactic Federation (#330077)Relative luminance 0.0265

Tints & shades

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

Harmonies

Complementary

Open in tool →

#538a00

#000e8a · #7c008a

#8a3700 · #008a37

Split-complementary

Open in tool →

#8a7c00 · #0e8a00

#8a000e · #538a00 · #008a7c

Contrast

#37008a as textRatioAAAA largeAAAFix
Aaon white
13.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #9147ff as the text (4.55:1)
  • AAA: use #af7aff as the text (7.05:1)
  • AA: or shift the background to #949494 (4.53:1)
  • AAA: or shift the background to #bababa (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37008a 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

#37008a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37008a
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 #37008a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37008a-b19cc4-dfd34e-2b1f2d-e9eaf1?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