Color

#1835aa

#1835aa
hex#1835aa
rgbrgb(24, 53, 170)
hslhsl(228, 75%, 38%)
oklchoklch(0.397 0.189 266.1)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0564

Colors that go with #1835aa

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 →

#aa8d18

#187eaa · #4418aa

#aa1835 · #35aa18

Split-complementary

Open in tool →

#aa4418 · #7eaa18

#aa187e · #aa8d18 · #18aa44

Contrast

#1835aa as textRatioAAAA largeAAAFix
Aaon white
9.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #4c6be6 as the text (4.55:1)
  • AAA: use #7990ec as the text (7.01:1)
  • AA: or shift the background to #b0b0b0 (4.55:1)
  • AAA: or shift the background to #dbdbdb (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1835aa 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

#1835aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1835aa
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 #1835aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1835aa-9c9fc4-df7c4e-231f2d-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