Color

#05009e

#05009e
hex#05009e
rgbrgb(5, 0, 158)
hslhsl(242, 100%, 31%)
oklchoklch(0.317 0.218 265)
Closest name: Everlasting Night (#000099)Relative luminance 0.025

Tints & shades

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

Harmonies

Complementary

Open in tool →

#999e00

#004a9e · #54009e

#9e0500 · #009e05

Split-complementary

Open in tool →

#9e5400 · #4a9e00

#9e004a · #999e00 · #009e54

Contrast

#05009e as textRatioAAAA largeAAAFix
Aaon white
14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.5:1failfailfail
  • AA: use #6661ff as the text (4.72:1)
  • AAA: use #8e8aff as the text (7.23:1)
  • AA: or shift the background to #949494 (4.61:1)
  • AAA: or shift the background to #b8b8b8 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #05009e 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

#05009e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05009e
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 #05009e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05009e-a29cc4-df9e4e-261f2d-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