Color

#258d52

#258d52
hex#258d52
rgbrgb(37, 141, 82)
hslhsl(146, 58%, 35%)
oklchoklch(0.571 0.13 153.6)
Closest name: seagreen (#2e8b57)Relative luminance 0.2005

Colors that go with #258d52

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 →

#8d2560

#2c8d25 · #258d86

#52258d · #8d5225

Split-complementary

Open in tool →

#86258d · #8d252c

#252c8d · #8d2560 · #8d8625

Contrast

#258d52 as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #23854e as the text (4.63:1)
  • AAA: use #1b653b as the text (7.07:1)
  • AA: or shift the background to #0f0f0f (4.57:1)
Aaon black
5.01:1passpassfail
  • AAA: use #2ead65 as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #258d52 as the background.

Brands using this color

mcpConnect your agent — build around #258d52
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 #258d52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/258d52-a2beb1-ce59d4-1f2d2b-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