Color

#259121

#259121
hex#259121
rgbrgb(37, 145, 33)
hslhsl(118, 63%, 35%)
oklchoklch(0.575 0.175 142.5)
Closest name: Emerald (#028f1e)Relative luminance 0.2075

Colors that go with #259121

Crimson, Royal Blue and Charcoal 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 →

#8e2191

#5d9121 · #219156

#212591 · #912125

Split-complementary

Open in tool →

#562191 · #91215d

#215d91 · #8e2191 · #915621

Contrast

#259121 as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #22851e as the text (4.73:1)
  • AAA: use #196417 as the text (7.3:1)
  • AA: or shift the background to #141414 (4.52:1)
Aaon black
5.15:1passpassfail
  • AAA: use #2caf28 as the text (7.27:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #259121 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 #259121
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 #259121 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/259121-a2bea4-944edf-1f2d25-edf1e9?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