Color

#3f975e

#3f975e
hex#3f975e
rgbrgb(63, 151, 94)
hslhsl(141, 41%, 42%)
oklchoklch(0.608 0.121 152.6)
Closest name: Eucalyptus (#329760)Relative luminance 0.24

Colors that go with #3f975e

Charcoal, Blue and Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#973f78

#4c973f · #3f978a

#5e3f97 · #975e3f

Split-complementary

Open in tool →

#8a3f97 · #973f4c

#3f4c97 · #973f78 · #978a3f

Contrast

#3f975e as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #388553 as the text (4.52:1)
  • AAA: use #29613c as the text (7.32:1)
  • AA: or shift the background to #1f1f1f (4.55:1)
Aaon black
5.8:1passpassfail
  • AAA: use #47a969 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f975e as the background.

Brands using this color

mcpConnect your agent — build around #3f975e
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 #3f975e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f975e-a2beaf-c459d4-1f2d2a-eaf1e9?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