Color

#183cbf

#183cbf
hex#183cbf
rgbrgb(24, 60, 191)
hslhsl(227, 78%, 42%)
oklchoklch(0.431 0.207 265.4)
Closest name: Denim (#2243b6)Relative luminance 0.0719

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf9a18

#188fbf · #4718bf

#bf183c · #3cbf18

Split-complementary

Open in tool →

#bf4718 · #8fbf18

#bf188f · #bf9a18 · #18bf47

Contrast

#183cbf as textRatioAAAA largeAAAFix
Aaon white
8.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.44:1failfailfail
  • AA: use #496ce9 as the text (4.6:1)
  • AAA: use #7791ee as the text (7.07:1)
  • AA: or shift the background to #bdbdbd (4.59:1)
  • AAA: or shift the background to #e8e8e8 (7.03:1)

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

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

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

tool url/palettes/new/183cbf-9ca0c4-df7a4e-221f2d-e9eff1?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