Color

#01a3cb

#01a3cb
hex#01a3cb
rgbrgb(1, 163, 203)
hslhsl(192, 99%, 40%)
oklchoklch(0.664 0.124 223.5)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.3051

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb2901

#01cb8e · #013ecb

#cb01a3 · #a3cb01

Split-complementary

Open in tool →

#cb013e · #cb8e01

#8e01cb · #cb2901 · #3ecb01

Contrast

#01a3cb as textRatioAAAA largeAAAFix
Aaon white
2.96:1failfailfail
  • AA: use #017e9d as the text (4.7:1)
  • AAA: use #015d75 as the text (7.44:1)
  • AA: or shift the background to #2e2e2e (4.59:1)
  • AAA: or shift the background to #000000 (7.1:1)
Aaon black
7.1:1passpasspassPasses 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 #01a3cb as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#01a3cb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01a3cb
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 #01a3cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01a3cb-a2b5be-df4e77-1f242d-e9f1ef?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