Color

#2d9ff0

#2d9ff0
hex#2d9ff0
rgbrgb(45, 159, 240)
hslhsl(205, 87%, 56%)
oklchoklch(0.679 0.155 245.2)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3165

Colors that go with #2d9ff0

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 →

#f07f2d

#2df0e0 · #2d3df0

#f02d9f · #9ff02d

Split-complementary

Open in tool →

#f02d3d · #f0e02d

#e02df0 · #f07f2d · #3df02d

Contrast

#2d9ff0 as textRatioAAAA largeAAAFix
Aaon white
2.87:1failfailfail
  • AA: use #0e78c4 as the text (4.66:1)
  • AAA: use #0a5b94 as the text (7.15:1)
  • AA: or shift the background to #303030 (4.61:1)
  • AAA: or shift the background to #050505 (7.11:1)
Aaon black
7.33:1passpasspassPasses 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 #2d9ff0 as the background.

Brands using this color

Fonts for this mood

#2d9ff0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d9ff0
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 #2d9ff0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d9ff0-9cafc4-df4e58-1f212d-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