Color

#644b2b

#644b2b
hex#644b2b
rgbrgb(100, 75, 43)
hslhsl(34, 40%, 28%)
oklchoklch(0.432 0.058 72.1)
Closest name: Black Power (#654b37)Relative luminance 0.0792

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b4464

#642f2b · #60642b

#2b644b · #4b2b64

Split-complementary

Open in tool →

#2b6064 · #2f2b64

#2b642f · #2b4464 · #642b60

Contrast

#644b2b as textRatioAAAA largeAAAFix
Aaon white
8.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.58:1failfailfail
  • AA: use #926e3f as the text (4.52:1)
  • AAA: use #b78e57 as the text (7.02:1)
  • AA: or shift the background to #c2c2c2 (4.56:1)
  • AAA: or shift the background to #f0f0f0 (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 #644b2b 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

#644b2b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #644b2b
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 #644b2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/644b2b-c4b79c-62c2cb-2d2d1f-f1eae9?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