Color

#043cbe

#043cbe
hex#043cbe
rgbrgb(4, 60, 190)
hslhsl(222, 96%, 38%)
oklchoklch(0.426 0.209 263.1)
Closest name: Denim (#2243b6)Relative luminance 0.0698

Tints & shades

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

Harmonies

Complementary

Open in tool →

#be8604

#0499be · #2904be

#be043c · #3cbe04

Split-complementary

Open in tool →

#be2904 · #99be04

#be0499 · #be8604 · #04be29

Contrast

#043cbe as textRatioAAAA largeAAAFix
Aaon white
8.77:1passpasspassPasses AAA — no fix needed.
Aaon black
2.4:1failfailfail
  • AA: use #2d6bfb as the text (4.61:1)
  • AAA: use #6492fc as the text (7.06:1)
  • AA: or shift the background to #bababa (4.52:1)
  • AAA: or shift the background to #e6e6e6 (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 #043cbe 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

#043cbe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043cbe
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 #043cbe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043cbe-9ca3c4-df6e4e-211f2d-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