Color

#3fa68e

#3fa68e
hex#3fa68e
rgbrgb(63, 166, 142)
hslhsl(166, 45%, 45%)
oklchoklch(0.659 0.102 174.8)
Closest name: Herbal (#29ab87)Relative luminance 0.3028

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a63f57

#3fa65b · #3f8ba6

#8e3fa6 · #a68e3f

Split-complementary

Open in tool →

#a63f8b · #a65b3f

#5b3fa6 · #a63f57 · #8ba63f

Contrast

#3fa68e as textRatioAAAA largeAAAFix
Aaon white
2.98:1failfailfail
  • AA: use #31816f as the text (4.67:1)
  • AAA: use #246052 as the text (7.32:1)
  • AA: or shift the background to #2e2e2e (4.56:1)
  • AAA: or shift the background to #000000 (7.06:1)
Aaon black
7.06:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fa68e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #3fa68e
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 #3fa68e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa68e-a2bebb-d459b1-1f2a2d-e9f1ec?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