Color

#298e57

#298e57
hex#298e57
rgbrgb(41, 142, 87)
hslhsl(147, 55%, 36%)
oklchoklch(0.575 0.125 154.9)
Closest name: seagreen (#2e8b57)Relative luminance 0.2051

Colors that go with #298e57

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 →

#8e2961

#2e8e29 · #298e89

#57298e · #8e5729

Split-complementary

Open in tool →

#89298e · #8e292e

#292e8e · #8e2961 · #8e8929

Contrast

#298e57 as textRatioAAAA largeAAAFix
Aaon white
4.12:1failpassfail
  • AA: use #278652 as the text (4.55:1)
  • AAA: use #1d633c as the text (7.24:1)
  • AA: or shift the background to #121212 (4.55:1)
Aaon black
5.1:1passpassfail
  • AAA: use #31aa68 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #298e57 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 #298e57
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 #298e57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/298e57-a2beb2-d059d4-1f2d2c-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