Color

#258d8d

#258d8d
hex#258d8d
rgbrgb(37, 141, 141)
hslhsl(180, 58%, 35%)
oklchoklch(0.587 0.09 195)
Closest name: darkcyan (#008b8b)Relative luminance 0.2137

Colors that go with #258d8d

Charcoal, Copper 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.

Real palettes that use #258d8d

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8d2525

#258d59 · #25598d

#8d258d · #8d8d25

Split-complementary

Open in tool →

#8d2559 · #8d5925

#59258d · #8d2525 · #598d25

Contrast

#258d8d as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #228181 as the text (4.64:1)
  • AAA: use #1a6161 as the text (7.18:1)
  • AA: or shift the background to #171717 (4.5:1)
Aaon black
5.27:1passpassfail
  • AAA: use #2ca5a5 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #258d8d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#258d8d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #258d8d
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 #258d8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/258d8d-a2bbbe-d45994-1f272d-e9f1ed?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