Color

#1a55ea

#1a55ea
hex#1a55ea
rgbrgb(26, 85, 234)
hslhsl(223, 83%, 51%)
oklchoklch(0.517 0.232 263.6)
Closest name: Blue Ribbon (#0066ff)Relative luminance 0.1266

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eaaf1a

#1abdea · #471aea

#ea1a55 · #55ea1a

Split-complementary

Open in tool →

#ea471a · #bdea1a

#ea1abd · #eaaf1a · #1aea47

Contrast

#1a55ea as textRatioAAAA largeAAAFix
Aaon white
5.95:1passpassfail
  • AAA: use #1449d2 as the text (7.21:1)
Aaon black
3.53:1failpassfail
  • AA: use #3b6ded as the text (4.6:1)
  • AAA: use #6e94f2 as the text (7.18:1)
  • AA: or shift the background to #e0e0e0 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a55ea as the background.

Brands using this color

Fonts for this mood

#1a55ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a55ea
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 #1a55ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a55ea-9ca3c4-df704e-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