Color

#1827fb

#1827fb
hex#1827fb
rgbrgb(24, 39, 251)
hslhsl(236, 97%, 54%)
oklchoklch(0.472 0.292 266)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0861

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbec18

#1899fb · #7b18fb

#fb1827 · #27fb18

Split-complementary

Open in tool →

#fb7b18 · #99fb18

#fb1899 · #fbec18 · #18fb7b

Contrast

#1827fb as textRatioAAAA largeAAAFix
Aaon white
7.71:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #5964fc as the text (4.65:1)
  • AAA: use #868efd as the text (7.3:1)
  • AA: or shift the background to #c7c7c7 (4.56:1)
  • AAA: or shift the background to #f5f5f5 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1827fb as the background.

Brands using this color

Fonts for this mood

#1827fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1827fb
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 #1827fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1827fb-9e9cc4-df8f4e-241f2d-e9eef1?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