Color

#0183da

#0183da
hex#0183da
rgbrgb(1, 131, 218)
hslhsl(204, 99%, 43%)
oklchoklch(0.597 0.162 248.4)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.213

Tints & shades

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

Harmonies

Complementary

Open in tool →

#da5801

#01dac4 · #0117da

#da0183 · #83da01

Split-complementary

Open in tool →

#da0117 · #dac401

#c401da · #da5801 · #17da01

Contrast

#0183da as textRatioAAAA largeAAAFix
Aaon white
3.99:1failpassfail
  • AA: use #017acb as the text (4.52:1)
  • AAA: use #015c98 as the text (7.03:1)
  • AA: or shift the background to #141414 (4.61:1)
Aaon black
5.26:1passpassfail
  • AAA: use #069bfe as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0183da as the background.

Brands using this color

Fonts for this mood

#0183da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0183da
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 #0183da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0183da-9cafc4-df4e5a-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