Color

#043281

#043281
hex#043281
rgbrgb(4, 50, 129)
hslhsl(218, 94%, 26%)
oklchoklch(0.346 0.141 260.9)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0389

Tints & shades

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

Harmonies

Complementary

Open in tool →

#815304

#047081 · #150481

#810432 · #328104

Split-complementary

Open in tool →

#811504 · #708104

#810470 · #815304 · #048115

Contrast

#043281 as textRatioAAAA largeAAAFix
Aaon white
11.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #1b6cf8 as the text (4.55:1)
  • AAA: use #5c96fa as the text (7.2:1)
  • AA: or shift the background to #a1a1a1 (4.57:1)
  • AAA: or shift the background to #c9c9c9 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #043281 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

#043281 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #043281
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 #043281 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/043281-9ca6c4-df644e-201f2d-e9f0f1?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