Color

#2db3fb

#2db3fb
hex#2db3fb
rgbrgb(45, 179, 251)
hslhsl(201, 96%, 58%)
oklchoklch(0.73 0.151 238.6)
Closest name: Cerulean (#55aaee)Relative luminance 0.3976

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb752d

#2dfbdc · #2d4cfb

#fb2db3 · #b3fb2d

Split-complementary

Open in tool →

#fb2d4c · #fbdc2d

#dc2dfb · #fb752d · #4cfb2d

Contrast

#2db3fb as textRatioAAAA largeAAAFix
Aaon white
2.35:1failfailfail
  • AA: use #047ab9 as the text (4.68:1)
  • AAA: use #035c8c as the text (7.21:1)
  • AA: or shift the background to #3d3d3d (4.63:1)
  • AAA: or shift the background to #1f1f1f (7.03:1)
Aaon black
8.95:1passpasspassPasses 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 #2db3fb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2db3fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2db3fb
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 #2db3fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2db3fb-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