Color

#183cdc

#183cdc
hex#183cdc
rgbrgb(24, 60, 220)
hslhsl(229, 80%, 48%)
oklchoklch(0.461 0.242 265.6)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0859

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dcb818

#189edc · #5618dc

#dc183c · #3cdc18

Split-complementary

Open in tool →

#dc5618 · #9edc18

#dc189e · #dcb818 · #18dc56

Contrast

#183cdc as textRatioAAAA largeAAAFix
Aaon white
7.72:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #4c69eb as the text (4.53:1)
  • AAA: use #7a90f0 as the text (7.08:1)
  • AA: or shift the background to #c7c7c7 (4.57:1)
  • AAA: or shift the background to #f5f5f5 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #183cdc 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

#183cdc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #183cdc
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 #183cdc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/183cdc-9c9fc4-df7e4e-231f2d-e9eef1?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