Color

#1a1dff

#1a1dff
hex#1a1dff
rgbrgb(26, 29, 255)
hslhsl(239, 100%, 55%)
oklchoklch(0.469 0.301 266.2)
Closest name: blue (#0000ff)Relative luminance 0.0832

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fffb1a

#1a90ff · #881aff

#ff1a1d · #1dff1a

Split-complementary

Open in tool →

#ff881a · #90ff1a

#ff1a90 · #fffb1a · #1aff88

Contrast

#1a1dff as textRatioAAAA largeAAAFix
Aaon white
7.88:1passpasspassPasses AAA — no fix needed.
Aaon black
2.66:1failfailfail
  • AA: use #5c5fff as the text (4.54:1)
  • AAA: use #8a8cff as the text (7.28:1)
  • AA: or shift the background to #c4c4c4 (4.52:1)
  • AAA: or shift the background to #f2f2f2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a1dff as the background.

Brands using this color

Fonts for this mood

#1a1dff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a1dff
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 #1a1dff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a1dff-a09cc4-df964e-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