Color

#1a59ea

#1a59ea
hex#1a59ea
rgbrgb(26, 89, 234)
hslhsl(222, 83%, 51%)
oklchoklch(0.524 0.227 263.1)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.133

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eaac1a

#1ac0ea · #441aea

#ea1a59 · #59ea1a

Split-complementary

Open in tool →

#ea441a · #c0ea1a

#ea1ac0 · #eaac1a · #1aea44

Contrast

#1a59ea as textRatioAAAA largeAAAFix
Aaon white
5.74:1passpassfail
  • AAA: use #134bcd as the text (7.2:1)
Aaon black
3.66:1failpassfail
  • AA: use #366dec as the text (4.56:1)
  • AAA: use #6e96f2 as the text (7.31:1)
  • AA: or shift the background to #e6e6e6 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a59ea as the background.

Brands using this color

Fonts for this mood

#1a59ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a59ea
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 #1a59ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a59ea-9ca3c4-df6e4e-211f2d-e9eff1?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