Color

#1a1aff

#1a1aff
hex#1a1aff
rgbrgb(26, 26, 255)
hslhsl(240, 100%, 55%)
oklchoklch(0.467 0.303 266.3)
Closest name: blue (#0000ff)Relative luminance 0.0818

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffff1a

#1a8cff · #8c1aff

#ff1a1a · #1aff1a

Split-complementary

Open in tool →

#ff8c1a · #8cff1a

#ff1a8c · #ffff1a · #1aff8c

Contrast

#1a1aff as textRatioAAAA largeAAAFix
Aaon white
7.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.64:1failfailfail
  • AA: use #6161ff as the text (4.66:1)
  • AAA: use #8a8aff as the text (7.16:1)
  • AA: or shift the background to #c4c4c4 (4.57:1)
  • AAA: or shift the background to #f2f2f2 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a1aff as the background.

Brands using this color

Fonts for this mood

#1a1aff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a1aff
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 #1a1aff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a1aff-a19cc4-df994e-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