Color

#3d424d

#3d424d
hex#3d424d
rgbrgb(61, 66, 77)
hslhsl(221, 12%, 27%)
oklchoklch(0.379 0.02 266)
Closest name: Arsenic (#3b444b)Relative luminance 0.0542

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d483d

#3d4a4d · #403d4d

#4d3d42 · #424d3d

Split-complementary

Open in tool →

#4d403d · #4a4d3d

#4d3d4a · #4d483d · #3d4d40

Contrast

#3d424d as textRatioAAAA largeAAAFix
Aaon white
10.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.08:1failfailfail
  • AA: use #6c7589 as the text (4.54:1)
  • AAA: use #9097a7 as the text (7.17:1)
  • AA: or shift the background to #b0b0b0 (4.64:1)
  • AAA: or shift the background to #d9d9d9 (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 #3d424d 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

#3d424d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d424d
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 #3d424d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d424d-9ca4c4-df6b4e-211f2d-e9eff1?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