Color

#2aa3f4

#2aa3f4
hex#2aa3f4
rgbrgb(42, 163, 244)
hslhsl(204, 90%, 56%)
oklchoklch(0.689 0.156 244.1)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3322

Colors that go with #2aa3f4

Charcoal, Medium Sea Green and Tomato 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 →

#f47b2a

#2af4e0 · #2a3ef4

#f42aa3 · #a3f42a

Split-complementary

Open in tool →

#f42a3e · #f4e02a

#e02af4 · #f47b2a · #3ef42a

Contrast

#2aa3f4 as textRatioAAAA largeAAAFix
Aaon white
2.75:1failfailfail
  • AA: use #0a78c2 as the text (4.69:1)
  • AAA: use #085a91 as the text (7.29:1)
  • AA: or shift the background to #333333 (4.6:1)
  • AAA: or shift the background to #0d0d0d (7.07:1)
Aaon black
7.64:1passpasspassPasses 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 #2aa3f4 as the background.

Brands using this color

Fonts for this mood

#2aa3f4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2aa3f4
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 #2aa3f4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2aa3f4-9cafc4-df4e5a-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