Color

#2d99e6

#2d99e6
hex#2d99e6
rgbrgb(45, 153, 230)
hslhsl(205, 79%, 54%)
oklchoklch(0.66 0.148 245)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.2905

Colors that go with #2d99e6

Charcoal, Orange Red and Bronze 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 →

#e67a2d

#2de6d7 · #2d3ce6

#e62d99 · #99e62d

Split-complementary

Open in tool →

#e62d3c · #e6d72d

#d72de6 · #e67a2d · #3ce62d

Contrast

#2d99e6 as textRatioAAAA largeAAAFix
Aaon white
3.08:1failpassfail
  • AA: use #1679c0 as the text (4.64:1)
  • AAA: use #115c92 as the text (7.07:1)
  • AA: or shift the background to #2b2b2b (4.59:1)
Aaon black
6.81:1passpassfail
  • AAA: use #369ee7 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d99e6 as the background.

Brands using this color

Fonts for this mood

#2d99e6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d99e6
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 #2d99e6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d99e6-9cafc4-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