Color

#42434c

#42434c
hex#42434c
rgbrgb(66, 67, 76)
hslhsl(234, 7%, 28%)
oklchoklch(0.385 0.015 280.6)
Closest name: Arsenic (#3b444b)Relative luminance 0.0569

Colors that go with #42434c

Blue, Blush Pink and Burlywood 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.

Real palettes that use #42434c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4c4b42

#42484c · #46424c

#4c4243 · #434c42

Split-complementary

Open in tool →

#4c4642 · #484c42

#4c4248 · #4c4b42 · #424c46

Contrast

#42434c as textRatioAAAA largeAAAFix
Aaon white
9.82:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #727483 as the text (4.54:1)
  • AAA: use #9596a3 as the text (7.17:1)
  • AA: or shift the background to #b0b0b0 (4.53:1)
  • AAA: or shift the background to #dbdbdb (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42434c 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

#42434c reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42434c
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 #42434c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42434c-a2beb0-c859d4-1f2d2b-eaf1e9?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