Color

#42333f

#42333f
hex#42333f
rgbrgb(66, 51, 63)
hslhsl(312, 13%, 23%)
oklchoklch(0.342 0.029 333.2)
Closest name: Call It a Night (#42364c)Relative luminance 0.0388

Tints & shades

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

Harmonies

Complementary

Open in tool →

#334236

#3e3342 · #423338

#3f4233 · #333f42

Split-complementary

Open in tool →

#384233 · #33423e

#423e33 · #334236 · #333842

Contrast

#42333f as textRatioAAAA largeAAAFix
Aaon white
11.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #8d6d87 as the text (4.67:1)
  • AAA: use #a88fa3 as the text (7.12:1)
  • AA: or shift the background to #a1a1a1 (4.57:1)
  • AAA: or shift the background to #c9c9c9 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42333f 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

#42333f reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42333f
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 #42333f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42333f-c19fb6-80cb62-2d1f24-efe9f1?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