Color

#198f5a

#198f5a
hex#198f5a
rgbrgb(25, 143, 90)
hslhsl(153, 70%, 33%)
oklchoklch(0.575 0.129 157.5)
Closest name: seagreen (#2e8b57)Relative luminance 0.2059

Colors that go with #198f5a

Charcoal, Crimson 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 →

#8f194e

#198f1f · #19898f

#5a198f · #8f5a19

Split-complementary

Open in tool →

#8f1989 · #8f1f19

#1f198f · #8f194e · #898f19

Contrast

#198f5a as textRatioAAAA largeAAAFix
Aaon white
4.1:1failpassfail
  • AA: use #188655 as the text (4.59:1)
  • AAA: use #12643f as the text (7.19:1)
  • AA: or shift the background to #121212 (4.57:1)
Aaon black
5.12:1passpassfail
  • AAA: use #1fad6d as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #198f5a 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 #198f5a
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 #198f5a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/198f5a-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