Color

#3a313a

#3a313a
hex#3a313a
rgbrgb(58, 49, 58)
hslhsl(300, 8%, 21%)
oklchoklch(0.326 0.02 326)
Closest name: After Dark (#3c3535)Relative luminance 0.034

Colors that go with #3a313a

Amber, Blue and Blush Pink 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#313a31

#36313a · #3a3136

#3a3a31 · #313a3a

Split-complementary

Open in tool →

#363a31 · #313a36

#3a3631 · #313a31 · #31363a

Contrast

#3a313a as textRatioAAAA largeAAAFix
Aaon white
12.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #847184 as the text (4.68:1)
  • AAA: use #a191a1 as the text (7.08:1)
  • AA: or shift the background to #9c9c9c (4.55:1)
  • AAA: or shift the background to #c2c2c2 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a313a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3a313a reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a313a
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 #3a313a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a313a-c19fbd-95cb62-2d1f27-ede9f1?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