Color

#040bc8

#040bc8
hex#040bc8
rgbrgb(4, 11, 200)
hslhsl(238, 96%, 40%)
oklchoklch(0.382 0.257 264.6)
Closest name: mediumblue (#0000cd)Relative luminance 0.0444

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c8c104

#046dc8 · #5f04c8

#c8040b · #0bc804

Split-complementary

Open in tool →

#c85f04 · #6dc804

#c8046d · #c8c104 · #04c85f

Contrast

#040bc8 as textRatioAAAA largeAAAFix
Aaon white
11.13:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #5f64fc as the text (4.72:1)
  • AAA: use #878bfd as the text (7.14:1)
  • AA: or shift the background to #a6a6a6 (4.57:1)
  • AAA: or shift the background to #cfcfcf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #040bc8 as the background.

Brands using this color

Fonts for this mood

#040bc8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #040bc8
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 #040bc8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/040bc8-9f9cc4-df944e-251f2d-e9edf1?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