Color

#39018d

#39018d
hex#39018d
rgbrgb(57, 1, 141)
hslhsl(264, 99%, 28%)
oklchoklch(0.329 0.188 287.7)
Closest name: Galactic Federation (#330077)Relative luminance 0.0281

Tints & shades

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

Harmonies

Complementary

Open in tool →

#568e01

#010f8e · #80018e

#8e3901 · #018e39

Split-complementary

Open in tool →

#8e8001 · #0f8e01

#8e010f · #568e01 · #018e80

Contrast

#39018d as textRatioAAAA largeAAAFix
Aaon white
13.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #9148fe as the text (4.56:1)
  • AAA: use #b07bfe as the text (7.11:1)
  • AA: or shift the background to #969696 (4.54:1)
  • AAA: or shift the background to #bdbdbd (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 #39018d 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

#39018d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39018d
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 #39018d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39018d-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