Color

#043cc8

#043cc8
hex#043cc8
rgbrgb(4, 60, 200)
hslhsl(223, 96%, 40%)
oklchoklch(0.436 0.221 263.4)
Closest name: Denim (#2243b6)Relative luminance 0.0743

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c89004

#049dc8 · #2f04c8

#c8043c · #3cc804

Split-complementary

Open in tool →

#c82f04 · #9dc804

#c8049d · #c89004 · #04c82f

Contrast

#043cc8 as textRatioAAAA largeAAAFix
Aaon white
8.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #326bfb as the text (4.63:1)
  • AAA: use #6993fc as the text (7.18:1)
  • AA: or shift the background to #bfbfbf (4.59:1)
  • AAA: or shift the background to #ebebeb (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 #043cc8 as the background.

Brands using this color

Fonts for this mood

#043cc8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043cc8
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 #043cc8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043cc8-9ca3c4-df704e-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