Color

#3c125e

#3c125e
hex#3c125e
rgbrgb(60, 18, 94)
hslhsl(273, 68%, 22%)
oklchoklch(0.296 0.127 304.8)
Closest name: Fabric of Space (#341758)Relative luminance 0.022

Colors that go with #3c125e

Charcoal, Royal Blue and Cadet Blue 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 →

#345e12

#16125e · #5e125a

#5e3c12 · #125e3c

Split-complementary

Open in tool →

#5a5e12 · #125e16

#5e1612 · #345e12 · #125a5e

Contrast

#3c125e as textRatioAAAA largeAAAFix
Aaon white
14.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #9e4fde as the text (4.63:1)
  • AAA: use #b87ee7 as the text (7.18:1)
  • AA: or shift the background to #8f8f8f (4.51:1)
  • AAA: or shift the background to #b5b5b5 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c125e as the background.

Brands using this color

Fonts for this mood

#3c125e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c125e
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 #3c125e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c125e-b79cc4-c4cb62-2d1f2d-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