Color

#04099a

#04099a
hex#04099a
rgbrgb(4, 9, 154)
hslhsl(238, 95%, 31%)
oklchoklch(0.317 0.21 264.9)
Closest name: Everlasting Night (#000099)Relative luminance 0.0255

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9a9504

#04549a · #4a049a

#9a0409 · #099a04

Split-complementary

Open in tool →

#9a4a04 · #549a04

#9a0454 · #9a9504 · #049a4a

Contrast

#04099a as textRatioAAAA largeAAAFix
Aaon white
13.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #5b60fb as the text (4.51:1)
  • AAA: use #888cfc as the text (7.2:1)
  • AA: or shift the background to #949494 (4.58:1)
  • AAA: or shift the background to #b8b8b8 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04099a 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

#04099a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04099a
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 #04099a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04099a-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