Color

#198a57

#198a57
hex#198a57
rgbrgb(25, 138, 87)
hslhsl(153, 69%, 32%)
oklchoklch(0.561 0.125 157.5)
Closest name: Center Field (#008b56)Relative luminance 0.1907

Colors that go with #198a57

Charcoal, Crimson and Royal Blue 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 →

#8a194c

#198a1f · #19848a

#57198a · #8a5719

Split-complementary

Open in tool →

#8a1984 · #8a1f19

#1f198a · #8a194c · #848a19

Contrast

#198a57 as textRatioAAAA largeAAAFix
Aaon white
4.36:1failpassfail
  • AA: use #198655 as the text (4.58:1)
  • AAA: use #12633f as the text (7.29:1)
  • AA: or shift the background to #0a0a0a (4.54:1)
Aaon black
4.81:1passpassfail
  • AAA: use #20ac6d as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #198a57 as the background.

Brands using this color

mcpConnect your agent — build around #198a57
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 #198a57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/198a57-a2beb5-d459cc-1f2d2d-e9f1ea?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