Color

#041b8b

#041b8b
hex#041b8b
rgbrgb(4, 27, 139)
hslhsl(230, 94%, 28%)
oklchoklch(0.315 0.181 264.8)
Closest name: darkblue (#00008b)Relative luminance 0.0267

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8b7404

#045e8b · #31048b

#8b041b · #1b8b04

Split-complementary

Open in tool →

#8b3104 · #5e8b04

#8b045e · #8b7404 · #048b31

Contrast

#041b8b as textRatioAAAA largeAAAFix
Aaon white
13.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #4866f9 as the text (4.54:1)
  • AAA: use #798ffb as the text (7.13:1)
  • AA: or shift the background to #949494 (4.51:1)
  • AAA: or shift the background to #bababa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #041b8b 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

#041b8b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #041b8b
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 #041b8b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/041b8b-9c9ec4-df814e-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