Color

#42444c

#42444c
hex#42444c
rgbrgb(66, 68, 76)
hslhsl(228, 7%, 28%)
oklchoklch(0.388 0.014 274.6)
Closest name: Arsenic (#3b444b)Relative luminance 0.0581

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4c4a42

#42494c · #45424c

#4c4244 · #444c42

Split-complementary

Open in tool →

#4c4542 · #494c42

#4c4249 · #4c4a42 · #424c45

Contrast

#42444c as textRatioAAAA largeAAAFix
Aaon white
9.71:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #727583 as the text (4.59:1)
  • AAA: use #9295a0 as the text (7.03:1)
  • AA: or shift the background to #b3b3b3 (4.63:1)
  • AAA: or shift the background to #dbdbdb (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 #42444c 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

#42444c reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42444c
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 #42444c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42444c-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