Color

#424f52

#424f52
hex#424f52
rgbrgb(66, 79, 82)
hslhsl(191, 11%, 29%)
oklchoklch(0.417 0.017 213.2)
Closest name: Abyssal (#404c57)Relative luminance 0.0736

Tints & shades

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

Harmonies

Complementary

Open in tool →

#524542

#42524d · #424752

#52424f · #4f5242

Split-complementary

Open in tool →

#524247 · #524d42

#4d4252 · #524542 · #475242

Contrast

#424f52 as textRatioAAAA largeAAAFix
Aaon white
8.5:1passpasspassPasses AAA — no fix needed.
Aaon black
2.47:1failfailfail
  • AA: use #64787d as the text (4.52:1)
  • AAA: use #85999d as the text (7.04:1)
  • AA: or shift the background to #bdbdbd (4.52:1)
  • AAA: or shift the background to #ebebeb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424f52 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

#424f52 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424f52
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 #424f52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424f52-a2b6be-df4e7a-1f252d-e9f1ef?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