Color

#2d9efb

#2d9efb
hex#2d9efb
rgbrgb(45, 158, 251)
hslhsl(207, 96%, 58%)
oklchoklch(0.683 0.168 248.7)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3198

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fb8a2d

#2dfbf0 · #2d37fb

#fb2d9e · #9efb2d

Split-complementary

Open in tool →

#fb2d37 · #fbf02d

#f02dfb · #fb8a2d · #37fb2d

Contrast

#2d9efb as textRatioAAAA largeAAAFix
Aaon white
2.84:1failfailfail
  • AA: use #0475d2 as the text (4.69:1)
  • AAA: use #0359a0 as the text (7.14:1)
  • AA: or shift the background to #303030 (4.65:1)
  • AAA: or shift the background to #080808 (7.05:1)
Aaon black
7.4:1passpasspassPasses 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 #2d9efb as the background.

Brands using this color

Fonts for this mood

#2d9efb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d9efb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2d9efb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d9efb-9cadc4-df4e53-1f212d-e9f1f1?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