Color

#311b24

#311b24
hex#311b24
rgbrgb(49, 27, 36)
hslhsl(335, 29%, 15%)
oklchoklch(0.255 0.038 354)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0156

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b3128

#311b2f · #311d1b

#24311b · #1b2431

Split-complementary

Open in tool →

#1b311d · #1b2f31

#2f311b · #1b3128 · #1d1b31

Contrast

#311b24 as textRatioAAAA largeAAAFix
Aaon white
16:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #a65e7c as the text (4.51:1)
  • AAA: use #be899f as the text (7.27:1)
  • AA: or shift the background to #8a8a8a (4.63:1)
  • AAA: or shift the background to #adadad (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #311b24 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

#311b24 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #311b24
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 #311b24 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/311b24-c49ca8-62cb6d-2d201f-f1e9f0?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