Color

#258e4f

#258e4f
hex#258e4f
rgbrgb(37, 142, 79)
hslhsl(144, 59%, 35%)
oklchoklch(0.573 0.134 152.3)
Closest name: seagreen (#2e8b57)Relative luminance 0.203

Colors that go with #258e4f

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 →

#8e2564

#2f8e25 · #258e83

#4f258e · #8e4f25

Split-complementary

Open in tool →

#83258e · #8e252f

#252f8e · #8e2564 · #8e8325

Contrast

#258e4f as textRatioAAAA largeAAAFix
Aaon white
4.15:1failpassfail
  • AA: use #23864a as the text (4.58:1)
  • AAA: use #1a6538 as the text (7.09:1)
  • AA: or shift the background to #121212 (4.51:1)
Aaon black
5.06:1passpassfail
  • AAA: use #2caa5e as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #258e4f 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 #258e4f
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 #258e4f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/258e4f-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