Color

#3a243d

#3a243d
hex#3a243d
rgbrgb(58, 36, 61)
hslhsl(293, 26%, 19%)
oklchoklch(0.299 0.053 322.5)
Closest name: Castro (#44232f)Relative luminance 0.025

Colors that go with #3a243d

Charcoal, Dark Olive Green and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #3a243d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#273d24

#2e243d · #3d2433

#3d3a24 · #243d3a

Split-complementary

Open in tool →

#333d24 · #243d2e

#3d2e24 · #273d24 · #24333d

Contrast

#3a243d as textRatioAAAA largeAAAFix
Aaon white
14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.5:1failfailfail
  • AA: use #9b62a3 as the text (4.67:1)
  • AAA: use #b388b9 as the text (7.14:1)
  • AA: or shift the background to #949494 (4.62:1)
  • AAA: or shift the background to #b8b8b8 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a243d 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

#3a243d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a243d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3a243d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a243d-c19fc1-a1cb62-2d1f29-ece9f1?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