Color

#1e40af

#1e40af
hex#1e40af
rgbrgb(30, 64, 175)
hslhsl(226, 71%, 40%)
oklchoklch(0.424 0.181 265.6)
Closest name: Denim (#2243b6)Relative luminance 0.0704

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ae8d1e

#1e88ae · #441eae

#ae1e3f · #3fae1e

Split-complementary

Open in tool →

#ae441e · #88ae1e

#ae1e88 · #ae8d1e · #1eae44

Contrast

#1e40af as textRatioAAAA largeAAAFix
Aaon white
8.72:1passpasspassPasses AAA — no fix needed.
Aaon black
2.41:1failfailfail
  • AA: use #4c6fe1 as the text (4.67:1)
  • AAA: use #7892e8 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 #1e40af as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#1e40af reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e40af
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 #1e40af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e40af-9ca1c4-df774e-221f2d-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