Color

#42004d

#42004d
hex#42004d
rgbrgb(66, 0, 77)
hslhsl(291, 100%, 15%)
oklchoklch(0.275 0.131 321)
Closest name: Romanic Scene (#3b0346)Relative luminance 0.0169

Colors that go with #42004d

Blue, Charcoal and Denim 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 →

#0b4d00

#1b004d · #4d0032

#4d4100 · #004d41

Split-complementary

Open in tool →

#324d00 · #004d1b

#4d1b00 · #0b4d00 · #00324d

Contrast

#42004d as textRatioAAAA largeAAAFix
Aaon white
15.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #c700eb as the text (4.63:1)
  • AAA: use #e657ff as the text (7.17:1)
  • AA: or shift the background to #8a8a8a (4.54:1)
  • AAA: or shift the background to #b0b0b0 (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42004d 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

#42004d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42004d
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 #42004d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42004d-bf9fc1-a4cb62-2d1f29-ece9f1?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