Color

#2183de

#2183de
hex#2183de
rgbrgb(33, 131, 222)
hslhsl(209, 74%, 50%)
oklchoklch(0.603 0.163 251.6)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2183

Tints & shades

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

Harmonies

Complementary

Open in tool →

#de7c21

#21dedb · #2124de

#de2183 · #83de21

Split-complementary

Open in tool →

#de2124 · #dedb21

#db21de · #de7c21 · #24de21

Contrast

#2183de as textRatioAAAA largeAAAFix
Aaon white
3.91:1failpassfail
  • AA: use #1e78cc as the text (4.55:1)
  • AAA: use #175997 as the text (7.21:1)
  • AA: or shift the background to #171717 (4.58:1)
Aaon black
5.37:1passpassfail
  • AAA: use #4e9ce4 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2183de as the background.

Brands using this color

Fonts for this mood

#2183de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2183de
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 #2183de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2183de-9cacc4-df4e4e-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