Color

#181bec

#181bec
hex#181bec
rgbrgb(24, 27, 236)
hslhsl(239, 85%, 51%)
oklchoklch(0.443 0.284 266.3)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0703

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ece918

#1886ec · #7f18ec

#ec181b · #1bec18

Split-complementary

Open in tool →

#ec7f18 · #86ec18

#ec1886 · #ece918 · #18ec7f

Contrast

#181bec as textRatioAAAA largeAAAFix
Aaon white
8.73:1passpasspassPasses AAA — no fix needed.
Aaon black
2.41:1failfailfail
  • AA: use #6366f2 as the text (4.71:1)
  • AAA: use #898bf5 as the text (7.08:1)
  • AA: or shift the background to #bdbdbd (4.64:1)
  • AAA: or shift the background to #e8e8e8 (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 #181bec as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#181bec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #181bec
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 #181bec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/181bec-a09cc4-df964e-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