Color

#3c8b5a

#3c8b5a
hex#3c8b5a
rgbrgb(60, 139, 90)
hslhsl(143, 40%, 39%)
oklchoklch(0.574 0.109 153.8)
Closest name: seagreen (#2e8b57)Relative luminance 0.2016

Colors that go with #3c8b5a

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 →

#8b3c6d

#458b3c · #3c8b82

#5a3c8b · #8b5a3c

Split-complementary

Open in tool →

#823c8b · #8b3c45

#3c458b · #8b3c6d · #8b823c

Contrast

#3c8b5a as textRatioAAAA largeAAAFix
Aaon white
4.17:1failpassfail
  • AA: use #398456 as the text (4.56:1)
  • AAA: use #29603e as the text (7.4:1)
  • AA: or shift the background to #0f0f0f (4.59:1)
Aaon black
5.03:1passpassfail
  • AAA: use #48a86d as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c8b5a 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 #3c8b5a
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 #3c8b5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c8b5a-a2beb0-c859d4-1f2d2b-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