Color

#1805eb

#1805eb
hex#1805eb
rgbrgb(24, 5, 235)
hslhsl(245, 96%, 47%)
oklchoklch(0.431 0.29 266.4)
Closest name: Burning Ultrablue (#150aec)Relative luminance 0.063

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d8eb05

#0565eb · #8b05eb

#eb1805 · #05eb18

Split-complementary

Open in tool →

#eb8b05 · #65eb05

#eb0565 · #d8eb05 · #05eb8b

Contrast

#1805eb as textRatioAAAA largeAAAFix
Aaon white
9.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #6c5ffc as the text (4.68:1)
  • AAA: use #9187fd as the text (7.09:1)
  • AA: or shift the background to #b5b5b5 (4.53:1)
  • AAA: or shift the background to #e0e0e0 (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 #1805eb as the background.

Brands using this color

Fonts for this mood

#1805eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1805eb
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 #1805eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1805eb-a49cc4-dfa54e-261f2d-e9ecf1?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