Color

#001a8f

#001a8f
hex#001a8f
rgbrgb(0, 26, 143)
hslhsl(229, 100%, 28%)
oklchoklch(0.318 0.187 264.1)
Closest name: Everlasting Night (#000099)Relative luminance 0.0272

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8f7500

#00628f · #2d008f

#8f001a · #1a8f00

Split-complementary

Open in tool →

#8f2d00 · #628f00

#8f0062 · #8f7500 · #008f2d

Contrast

#001a8f as textRatioAAAA largeAAAFix
Aaon white
13.6:1passpasspassPasses AAA — no fix needed.
Aaon black
1.54:1failfailfail
  • AA: use #4265ff as the text (4.54:1)
  • AAA: use #758fff as the text (7.13:1)
  • AA: or shift the background to #969696 (4.6:1)
  • AAA: or shift the background to #bababa (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 #001a8f 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

#001a8f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #001a8f
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 #001a8f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/001a8f-9c9fc4-df7e4e-231f2d-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