Color

#1e428a

#1e428a
hex#1e428a
rgbrgb(30, 66, 138)
hslhsl(220, 64%, 33%)
oklchoklch(0.397 0.127 262.3)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0601

Colors that go with #1e428a

Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a661e

#1e788a · #301e8a

#8a1e42 · #428a1e

Split-complementary

Open in tool →

#8a301e · #788a1e

#8a1e78 · #8a661e · #1e8a30

Contrast

#1e428a as textRatioAAAA largeAAAFix
Aaon white
9.54:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #3f71d5 as the text (4.53:1)
  • AAA: use #7196e0 as the text (7.14:1)
  • AA: or shift the background to #b3b3b3 (4.55:1)
  • AAA: or shift the background to #dedede (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1e428a as the background.

Brands using this color

Fonts for this mood

#1e428a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e428a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1e428a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e428a-9ca5c4-df694e-211f2d-e9f0f1?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