Color

#424552

#424552
hex#424552
rgbrgb(66, 69, 82)
hslhsl(229, 11%, 29%)
oklchoklch(0.393 0.022 275.1)
Closest name: Arsenic (#3b444b)Relative luminance 0.0602

Tints & shades

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

Harmonies

Complementary

Open in tool →

#524f42

#424d52 · #474252

#524245 · #455242

Split-complementary

Open in tool →

#524742 · #4d5242

#52424d · #524f42 · #425247

Contrast

#424552 as textRatioAAAA largeAAAFix
Aaon white
9.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #6f748b as the text (4.55:1)
  • AAA: use #9195a6 as the text (7.05:1)
  • AA: or shift the background to #b3b3b3 (4.54:1)
  • AAA: or shift the background to #dedede (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #424552 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

#424552 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #424552
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 #424552 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/424552-9c9fc4-df7e4e-231f2d-e9eef1?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