Color

#01099d

#01099d
hex#01099d
rgbrgb(1, 9, 157)
hslhsl(237, 99%, 31%)
oklchoklch(0.321 0.214 264.3)
Closest name: Everlasting Night (#000099)Relative luminance 0.0264

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9d9501

#01579d · #47019d

#9d0109 · #099d01

Split-complementary

Open in tool →

#9d4701 · #579d01

#9d0157 · #9d9501 · #019d47

Contrast

#01099d as textRatioAAAA largeAAAFix
Aaon white
13.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #5860fe as the text (4.52:1)
  • AAA: use #858bfe as the text (7.12:1)
  • AA: or shift the background to #949494 (4.53:1)
  • AAA: or shift the background to #bababa (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01099d 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

#01099d reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01099d
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 #01099d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01099d-9f9cc4-df924e-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