Color

#25b4cb

#25b4cb
hex#25b4cb
rgbrgb(37, 180, 203)
hslhsl(188, 69%, 47%)
oklchoklch(0.709 0.116 211.7)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3735

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb3b25

#25cb8e · #2562cb

#cb25b4 · #b4cb25

Split-complementary

Open in tool →

#cb2562 · #cb8e25

#8e25cb · #cb3b25 · #62cb25

Contrast

#25b4cb as textRatioAAAA largeAAAFix
Aaon white
2.48:1failfailfail
  • AA: use #1a7f8e as the text (4.7:1)
  • AAA: use #14606c as the text (7.19:1)
  • AA: or shift the background to #3b3b3b (4.52:1)
  • AAA: or shift the background to #1a1a1a (7.02:1)
Aaon black
8.47:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #25b4cb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#25b4cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #25b4cb
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 #25b4cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25b4cb-a2b7be-df4e81-1f252d-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