Color

#1e3ac8

#1e3ac8
hex#1e3ac8
rgbrgb(30, 58, 200)
hslhsl(230, 74%, 45%)
oklchoklch(0.439 0.219 266.7)
Closest name: Denim (#2243b6)Relative luminance 0.0747

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c8ab1e

#1e8fc8 · #561ec8

#c81e3a · #3ac81e

Split-complementary

Open in tool →

#c8561e · #8fc81e

#c81e8f · #c8ab1e · #1ec856

Contrast

#1e3ac8 as textRatioAAAA largeAAAFix
Aaon white
8.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #526ae5 as the text (4.55:1)
  • AAA: use #7e91ec as the text (7.15:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1e3ac8 as the background.

Brands using this color

Fonts for this mood

#1e3ac8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e3ac8
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 #1e3ac8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e3ac8-9c9ec4-df814e-231f2d-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