Color

#39156f

#39156f
hex#39156f
rgbrgb(57, 21, 111)
hslhsl(264, 68%, 26%)
oklchoklch(0.312 0.142 294.8)
Closest name: Explorer of the Galaxies (#3a1f76)Relative luminance 0.0255

Colors that go with #39156f

Charcoal, Royal Blue and Crimson 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 →

#4b6f15

#151e6f · #66156f

#6f3915 · #156f39

Split-complementary

Open in tool →

#6f6615 · #1e6f15

#6f151e · #4b6f15 · #156f66

Contrast

#39156f as textRatioAAAA largeAAAFix
Aaon white
13.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #8e58df as the text (4.61:1)
  • AAA: use #ab83e7 as the text (7.13:1)
  • AA: or shift the background to #949494 (4.58:1)
  • AAA: or shift the background to #b8b8b8 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39156f as the background.

Brands using this color

Fonts for this mood

#39156f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39156f
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 #39156f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39156f-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