Color

#10400d

#10400d
hex#10400d
rgbrgb(16, 64, 13)
hslhsl(116, 66%, 15%)
oklchoklch(0.327 0.094 142.3)
Closest name: Deep Pond (#014420)Relative luminance 0.0381

Colors that go with #10400d

Crimson, Royal Blue and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3c0d3f

#2a3f0d · #0d3f23

#0d103f · #3f0d10

Split-complementary

Open in tool →

#230d3f · #3f0d2a

#0d2a3f · #3c0d3f · #3f230d

Contrast

#10400d as textRatioAAAA largeAAAFix
Aaon white
11.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #23871c as the text (4.55:1)
  • AAA: use #2dae24 as the text (7.19:1)
  • AA: or shift the background to #a1a1a1 (4.62:1)
  • AAA: or shift the background to #c7c7c7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10400d 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

#10400d reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #10400d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #10400d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10400d-a2bea3-8f4edf-1f2d24-eef1e9?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