Color

#639550

#639550
hex#639550
rgbrgb(99, 149, 80)
hslhsl(103, 30%, 45%)
oklchoklch(0.617 0.112 137.6)
Closest name: Bitter Leaf (#669841)Relative luminance 0.2473

Tints & shades

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

Harmonies

Complementary

Open in tool →

#825095

#869550 · #50955f

#506495 · #955064

Split-complementary

Open in tool →

#5f5095 · #955086

#508695 · #825095 · #955f50

Contrast

#639550 as textRatioAAAA largeAAAFix
Aaon white
3.53:1failpassfail
  • AA: use #578146 as the text (4.53:1)
  • AAA: use #406034 as the text (7.14:1)
  • AA: or shift the background to #212121 (4.56:1)
Aaon black
5.95:1passpassfail
  • AAA: use #6fa659 as the text (7.27:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #639550 as the background.

Brands using this color

mcpConnect your agent — build around #639550
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 #639550 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/639550-a6bea2-704edf-1f2d21-eff1e9?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