Color

#258e15

#258e15
hex#258e15
rgbrgb(37, 142, 21)
hslhsl(112, 74%, 32%)
oklchoklch(0.566 0.178 141.4)
Closest name: Emerald (#028f1e)Relative luminance 0.1979

Colors that go with #258e15

Royal Blue, Charcoal and Crimson 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 →

#7e158e

#628e15 · #158e41

#15258e · #8e1525

Split-complementary

Open in tool →

#41158e · #8e1562

#15628e · #7e158e · #8e4115

Contrast

#258e15 as textRatioAAAA largeAAAFix
Aaon white
4.23:1failpassfail
  • AA: use #238514 as the text (4.73:1)
  • AAA: use #1b660f as the text (7.11:1)
  • AA: or shift the background to #0f0f0f (4.53:1)
Aaon black
4.96:1passpassfail
  • AAA: use #2dad1a as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #258e15 as the background.

Brands using this color

mcpConnect your agent — build around #258e15
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 #258e15 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/258e15-a2bea2-864edf-1f2d23-eef1e9?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