Color

#25b2ef

#25b2ef
hex#25b2ef
rgbrgb(37, 178, 239)
hslhsl(198, 86%, 54%)
oklchoklch(0.72 0.142 233.7)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.3847

Colors that go with #25b2ef

Charcoal, Dark Orange and Amber 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 →

#ef6125

#25efc6 · #254def

#ef25b2 · #b2ef25

Split-complementary

Open in tool →

#ef254d · #efc625

#c625ef · #ef6125 · #4def25

Contrast

#25b2ef as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #0d7bab as the text (4.73:1)
  • AAA: use #0a5d80 as the text (7.27:1)
  • AA: or shift the background to #3b3b3b (4.64:1)
  • AAA: or shift the background to #1c1c1c (7.05:1)
Aaon black
8.69:1passpasspassPasses 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 #25b2ef as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#25b2ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #25b2ef
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 #25b2ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/25b2ef-9cb3c4-df4e69-1f232d-e9f1f0?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