Color

#646a16

#646a16
hex#646a16
rgbrgb(100, 106, 22)
hslhsl(64, 66%, 25%)
oklchoklch(0.503 0.103 113.7)
Closest name: darkolivegreen (#556b2f)Relative luminance 0.1308

Colors that go with #646a16

Charcoal, Royal Blue and Blue Violet 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 #646a16

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b166a

#6a4516 · #3a6a16

#16646a · #6a1664

Split-complementary

Open in tool →

#163a6a · #45166a

#166a45 · #1b166a · #6a163a

Contrast

#646a16 as textRatioAAAA largeAAAFix
Aaon white
5.81:1passpassfail
  • AAA: use #585d13 as the text (7.02:1)
Aaon black
3.62:1failpassfail
  • AA: use #747b19 as the text (4.59:1)
  • AAA: use #949d20 as the text (7.1:1)
  • AA: or shift the background to #e3e3e3 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #646a16 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

#646a16 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #646a16
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 #646a16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/646a16-b9bea2-4e8adf-262d1f-f1eee9?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