Color

#10331b

#10331b
hex#10331b
rgbrgb(16, 51, 27)
hslhsl(139, 52%, 13%)
oklchoklch(0.288 0.06 151.2)
Closest name: Dark Serpent (#113311)Relative luminance 0.0256

Tints & shades

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

Harmonies

Complementary

Open in tool →

#321027

#163210 · #10322c

#1b1032 · #321b10

Split-complementary

Open in tool →

#2c1032 · #321016

#101632 · #321027 · #322c10

Contrast

#10331b as textRatioAAAA largeAAAFix
Aaon white
13.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #2b8848 as the text (4.72:1)
  • AAA: use #36ab5b as the text (7.13:1)
  • AA: or shift the background to #949494 (4.58:1)
  • AAA: or shift the background to #b8b8b8 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10331b 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

#10331b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10331b
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 #10331b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10331b-a2beae-c059d4-1f2d2a-ebf1e9?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