Color

#3d4752

#3d4752
hex#3d4752
rgbrgb(61, 71, 82)
hslhsl(211, 15%, 28%)
oklchoklch(0.393 0.023 250.9)
Closest name: Arsenic (#3b444b)Relative luminance 0.0611

Tints & shades

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

Harmonies

Complementary

Open in tool →

#52483d

#3d5252 · #3d3d52

#523d47 · #47523d

Split-complementary

Open in tool →

#523d3d · #52523d

#523d52 · #52483d · #3d523d

Contrast

#3d4752 as textRatioAAAA largeAAAFix
Aaon white
9.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.22:1failfailfail
  • AA: use #66778a as the text (4.57:1)
  • AAA: use #8a98a8 as the text (7.14:1)
  • AA: or shift the background to #b3b3b3 (4.51:1)
  • AAA: or shift the background to #dedede (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d4752 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

#3d4752 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d4752
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 #3d4752 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d4752-9cabc4-df534e-1f202d-e9f1f1?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