Color

#31301b

#31301b
hex#31301b
rgbrgb(49, 48, 27)
hslhsl(57, 29%, 15%)
oklchoklch(0.304 0.035 105.9)
Closest name: Marshland (#2b2e26)Relative luminance 0.0285

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b1c31

#31251b · #27311b

#1b3130 · #301b31

Split-complementary

Open in tool →

#1b2731 · #251b31

#1b3125 · #1b1c31 · #311b27

Contrast

#31301b as textRatioAAAA largeAAAFix
Aaon white
13.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.57:1failfailfail
  • AA: use #7a7743 as the text (4.55:1)
  • AAA: use #9e9a57 as the text (7.21:1)
  • AA: or shift the background to #969696 (4.52:1)
  • AAA: or shift the background to #bdbdbd (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31301b 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

#31301b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31301b
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 #31301b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31301b-bcbea2-4e9bdf-282d1f-f1ede9?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