Color

#1e33cc

#1e33cc
hex#1e33cc
rgbrgb(30, 51, 204)
hslhsl(233, 74%, 46%)
oklchoklch(0.432 0.231 267.3)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.07

Colors that go with #1e33cc

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 →

#ccb81e

#1e8acc · #611ecc

#cc1e33 · #33cc1e

Split-complementary

Open in tool →

#cc611e · #8acc1e

#cc1e8a · #ccb81e · #1ecc61

Contrast

#1e33cc as textRatioAAAA largeAAAFix
Aaon white
8.75:1passpasspassPasses AAA — no fix needed.
Aaon black
2.4:1failfailfail
  • AA: use #5b6be6 as the text (4.69:1)
  • AAA: use #838fec as the text (7.11:1)
  • AA: or shift the background to #bababa (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1e33cc 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

#1e33cc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e33cc
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 #1e33cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e33cc-9c9cc4-df884e-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