Color

#2ab3cb

#2ab3cb
hex#2ab3cb
rgbrgb(42, 179, 203)
hslhsl(189, 66%, 48%)
oklchoklch(0.708 0.115 212.8)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3704

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb422a

#2acb93 · #2a62cb

#cb2ab3 · #b3cb2a

Split-complementary

Open in tool →

#cb2a62 · #cb932a

#932acb · #cb422a · #62cb2a

Contrast

#2ab3cb as textRatioAAAA largeAAAFix
Aaon white
2.5:1failfailfail
  • AA: use #1d7f90 as the text (4.68:1)
  • AAA: use #17616e as the text (7.07:1)
  • AA: or shift the background to #383838 (4.7:1)
  • AAA: or shift the background to #171717 (7.18:1)
Aaon black
8.41:1passpasspassPasses 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 #2ab3cb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2ab3cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2ab3cb
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 #2ab3cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2ab3cb-a2b7be-df4e7e-1f252d-e9f1ee?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