Color

#645c02

#645c02
hex#645c02
rgbrgb(100, 92, 2)
hslhsl(55, 96%, 20%)
oklchoklch(0.468 0.098 103.6)
Closest name: Ayahuasca Vine (#665500)Relative luminance 0.1037

Colors that go with #645c02

Charcoal, Royal Blue and Champagne 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.

Real palettes that use #645c02

Tints & shades

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

Harmonies

Complementary

Open in tool →

#020a64

#642b02 · #3b6402

#02645c · #5c0264

Split-complementary

Open in tool →

#023b64 · #2b0264

#02642b · #020a64 · #64023b

Contrast

#645c02 as textRatioAAAA largeAAAFix
Aaon white
6.83:1passpassfail
  • AAA: use #5f5702 as the text (7.37:1)
Aaon black
3.07:1failpassfail
  • AA: use #827703 as the text (4.59:1)
  • AAA: use #a59703 as the text (7.03:1)
  • AA: or shift the background to #d4d4d4 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #645c02 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

#645c02 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #645c02
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 #645c02 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/645c02-bdbea2-4ea0df-282d1f-f1ede9?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