Color

#1b2fde

#1b2fde
hex#1b2fde
rgbrgb(27, 47, 222)
hslhsl(234, 78%, 49%)
oklchoklch(0.447 0.255 266.7)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0754

Tints & shades

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

Harmonies

Complementary

Open in tool →

#decb1b

#1b90de · #691bde

#de1b2f · #2fde1b

Split-complementary

Open in tool →

#de691b · #90de1b

#de1b90 · #decb1b · #1bde69

Contrast

#1b2fde as textRatioAAAA largeAAAFix
Aaon white
8.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #5c6aeb as the text (4.72:1)
  • AAA: use #848ff0 as the text (7.17:1)
  • AA: or shift the background to #bfbfbf (4.55:1)
  • AAA: or shift the background to #ebebeb (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b2fde 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

#1b2fde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b2fde
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 #1b2fde and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b2fde-9d9cc4-df8a4e-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