Color

#2fa5e4

#2fa5e4
hex#2fa5e4
rgbrgb(47, 165, 228)
hslhsl(201, 77%, 54%)
oklchoklch(0.687 0.136 237.7)
Closest name: Cerulean (#55aaee)Relative luminance 0.3312

Colors that go with #2fa5e4

Charcoal, Bronze 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 →

#e46f2f

#2fe4c9 · #2f4ae4

#e42fa5 · #a5e42f

Split-complementary

Open in tool →

#e42f4a · #e4c92f

#c92fe4 · #e46f2f · #4ae42f

Contrast

#2fa5e4 as textRatioAAAA largeAAAFix
Aaon white
2.75:1failfailfail
  • AA: use #177ab0 as the text (4.72:1)
  • AAA: use #125e87 as the text (7.05:1)
  • AA: or shift the background to #333333 (4.59:1)
  • AAA: or shift the background to #0d0d0d (7.06:1)
Aaon black
7.62:1passpasspassPasses 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 #2fa5e4 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2fa5e4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2fa5e4
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 #2fa5e4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2fa5e4-9cb1c4-df4e62-1f222d-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