Color

#646c19

#646c19
hex#646c19
rgbrgb(100, 108, 25)
hslhsl(66, 62%, 26%)
oklchoklch(0.508 0.104 115)
Closest name: darkolivegreen (#556b2f)Relative luminance 0.135

Tints & shades

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

Harmonies

Complementary

Open in tool →

#21196b

#6b4b19 · #3a6b19

#19636b · #6b1963

Split-complementary

Open in tool →

#193a6b · #4b196b

#196b4b · #21196b · #6b193a

Contrast

#646c19 as textRatioAAAA largeAAAFix
Aaon white
5.67:1passpassfail
  • AAA: use #545b15 as the text (7.28:1)
Aaon black
3.7:1failpassfail
  • AA: use #727c1d as the text (4.62:1)
  • AAA: use #919d25 as the text (7.05:1)
  • AA: or shift the background to #e6e6e6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #646c19 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

#646c19 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #646c19
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 #646c19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/646c19-b8bea2-4e86df-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