Color

#312b2d

#312b2d
hex#312b2d
rgbrgb(49, 43, 45)
hslhsl(340, 7%, 18%)
oklchoklch(0.296 0.009 355.5)
Closest name: Mystical Shadow (#352b30)Relative luminance 0.0257

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b312f

#312b30 · #312c2b

#2d312b · #2b2d31

Split-complementary

Open in tool →

#2b312c · #2b3031

#30312b · #2b312f · #2c2b31

Contrast

#312b2d as textRatioAAAA largeAAAFix
Aaon white
13.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #837278 as the text (4.64:1)
  • AAA: use #a09297 as the text (7.05:1)
  • AA: or shift the background to #949494 (4.57:1)
  • AAA: or shift the background to #bababa (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #312b2d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#312b2d reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #312b2d
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 #312b2d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/312b2d-a2beb0-c859d4-1f2d2b-eaf1e9?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