Color

#041b4e

#041b4e
hex#041b4e
rgbrgb(4, 27, 78)
hslhsl(221, 90%, 16%)
oklchoklch(0.244 0.099 262.4)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0136

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4e3604

#04404e · #12044e

#4e041b · #1b4e04

Split-complementary

Open in tool →

#4e1204 · #404e04

#4e0440 · #4e3604 · #044e12

Contrast

#041b4e as textRatioAAAA largeAAAFix
Aaon white
16.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #2f6df4 as the text (4.61:1)
  • AAA: use #6996f7 as the text (7.31:1)
  • AA: or shift the background to #878787 (4.6:1)
  • AAA: or shift the background to #ababab (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #041b4e 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

#041b4e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #041b4e
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 #041b4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/041b4e-9ca4c4-df6b4e-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