Color

#1e233e

#1e233e
hex#1e233e
rgbrgb(30, 35, 62)
hslhsl(231, 35%, 18%)
oklchoklch(0.266 0.051 274.5)
Closest name: Black Market (#222244)Relative luminance 0.0183

Colors that go with #1e233e

Charcoal, Dark Olive Green and Sea Green 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 →

#3e391e

#1e333e · #291e3e

#3e1e23 · #233e1e

Split-complementary

Open in tool →

#3e291e · #333e1e

#3e1e33 · #3e391e · #1e3e29

Contrast

#1e233e as textRatioAAAA largeAAAFix
Aaon white
15.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.37:1failfailfail
  • AA: use #6470b4 as the text (4.52:1)
  • AAA: use #8a93c7 as the text (7.08:1)
  • AA: or shift the background to #8c8c8c (4.57:1)
  • AAA: or shift the background to #b0b0b0 (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 #1e233e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1e233e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1e233e
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 #1e233e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1e233e-9c9ec4-df834e-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