Color

#041dfb

#041dfb
hex#041dfb
rgbrgb(4, 29, 251)
hslhsl(234, 97%, 50%)
oklchoklch(0.46 0.3 264.4)
Closest name: blue (#0000ff)Relative luminance 0.0787

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbe204

#0498fb · #6704fb

#fb041d · #1dfb04

Split-complementary

Open in tool →

#fb6704 · #98fb04

#fb0498 · #fbe204 · #04fb67

Contrast

#041dfb as textRatioAAAA largeAAAFix
Aaon white
8.16:1passpasspassPasses AAA — no fix needed.
Aaon black
2.57:1failfailfail
  • AA: use #5465fc as the text (4.64:1)
  • AAA: use #818efd as the text (7.22:1)
  • AA: or shift the background to #c2c2c2 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.16:1)

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

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/041dfb-9d9cc4-df8a4e-241f2d-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