Color

#183111

#183111
hex#183111
rgbrgb(24, 49, 17)
hslhsl(107, 48%, 13%)
oklchoklch(0.284 0.063 139.2)
Closest name: Dark Serpent (#113311)Relative luminance 0.0243

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2a1131

#283111 · #11311a

#111831 · #311118

Split-complementary

Open in tool →

#1a1131 · #311128

#112831 · #2a1131 · #311a11

Contrast

#183111 as textRatioAAAA largeAAAFix
Aaon white
14.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.49:1failfailfail
  • AA: use #41842e as the text (4.56:1)
  • AAA: use #54aa3c as the text (7.19:1)
  • AA: or shift the background to #949494 (4.66:1)
  • AAA: or shift the background to #b8b8b8 (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 #183111 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

#183111 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #183111
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 #183111 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/183111-a5bea2-7a4edf-1f2d22-eff1e9?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