Color

#3d8a5c

#3d8a5c
hex#3d8a5c
rgbrgb(61, 138, 92)
hslhsl(144, 39%, 39%)
oklchoklch(0.572 0.105 154.9)
Closest name: seagreen (#2e8b57)Relative luminance 0.1994

Colors that go with #3d8a5c

Charcoal, Royal Blue and Medium Violet Red 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 →

#8a3d6b

#448a3d · #3d8a82

#5c3d8a · #8a5c3d

Split-complementary

Open in tool →

#823d8a · #8a3d44

#3d448a · #8a3d6b · #8a823d

Contrast

#3d8a5c as textRatioAAAA largeAAAFix
Aaon white
4.21:1failpassfail
  • AA: use #3a8357 as the text (4.6:1)
  • AAA: use #2c6342 as the text (7.07:1)
  • AA: or shift the background to #0f0f0f (4.55:1)
Aaon black
4.99:1passpassfail
  • AAA: use #49a76f as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d8a5c 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 #3d8a5c
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 #3d8a5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d8a5c-a2beb0-ca59d4-1f2d2b-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