Color

#03400b

#03400b
hex#03400b
rgbrgb(3, 64, 11)
hslhsl(128, 91%, 13%)
oklchoklch(0.324 0.101 144.4)
Closest name: Deep Pond (#014420)Relative luminance 0.0371

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f0337

#193f03 · #033f29

#0b033f · #3f0b03

Split-complementary

Open in tool →

#29033f · #3f0319

#03193f · #3f0337 · #3f2903

Contrast

#03400b as textRatioAAAA largeAAAFix
Aaon white
12.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #068818 as the text (4.54:1)
  • AAA: use #08af1f as the text (7.16:1)
  • AA: or shift the background to #a1a1a1 (4.67:1)
  • AAA: or shift the background to #c7c7c7 (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 #03400b 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

#03400b reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03400b
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 #03400b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03400b-a2bea9-ac4edf-1f2d27-ecf1e9?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