Color

#1d1aff

#1d1aff
hex#1d1aff
rgbrgb(29, 26, 255)
hslhsl(241, 100%, 55%)
oklchoklch(0.468 0.302 266.6)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0822

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbff1a

#1a88ff · #901aff

#ff1d1a · #1aff1d

Split-complementary

Open in tool →

#ff901a · #88ff1a

#ff1a88 · #fbff1a · #1aff90

Contrast

#1d1aff as textRatioAAAA largeAAAFix
Aaon white
7.94:1passpasspassPasses AAA — no fix needed.
Aaon black
2.64:1failfailfail
  • AA: use #6461ff as the text (4.7:1)
  • AAA: use #8c8aff as the text (7.19:1)
  • AA: or shift the background to #c4c4c4 (4.55:1)
  • AAA: or shift the background to #f2f2f2 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d1aff as the background.

Brands using this color

Fonts for this mood

#1d1aff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d1aff
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 #1d1aff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d1aff-a19cc4-df9b4e-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