Color

#258588

#258588
hex#258588
rgbrgb(37, 133, 136)
hslhsl(182, 57%, 34%)
oklchoklch(0.565 0.086 198.1)
Closest name: darkcyan (#008b8b)Relative luminance 0.1895

Tints & shades

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

Harmonies

Complementary

Open in tool →

#882925

#25885a · #255388

#882585 · #858825

Split-complementary

Open in tool →

#882553 · #885a25

#5a2588 · #882925 · #538825

Contrast

#258588 as textRatioAAAA largeAAAFix
Aaon white
4.38:1failpassfail
  • AA: use #248184 as the text (4.62:1)
  • AAA: use #1b6264 as the text (7.05:1)
  • AA: or shift the background to #0a0a0a (4.52:1)
Aaon black
4.79:1passpassfail
  • AAA: use #2fa8ac as the text (7.32:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #258588 as the background.

Brands using this color

Fonts for this mood

#258588 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #258588
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #258588 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/258588-a2babe-d45990-1f272d-e9f1ee?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