Color

#233a86

#233a86
hex#233a86
rgbrgb(35, 58, 134)
hslhsl(226, 59%, 33%)
oklchoklch(0.378 0.131 267.1)
Closest name: Deep Space Royal (#223382)Relative luminance 0.051

Colors that go with #233a86

Charcoal, Steel Blue and 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 →

#866f23

#236b86 · #3d2386

#86233a · #3a8623

Split-complementary

Open in tool →

#863d23 · #6b8623

#86236b · #866f23 · #23863d

Contrast

#233a86 as textRatioAAAA largeAAAFix
Aaon white
10.39:1passpasspassPasses AAA — no fix needed.
Aaon black
2.02:1failfailfail
  • AA: use #516fd2 as the text (4.55:1)
  • AAA: use #7d94de as the text (7.16:1)
  • AA: or shift the background to #ababab (4.53:1)
  • AAA: or shift the background to #d4d4d4 (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 #233a86 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#233a86 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #233a86
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 #233a86 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233a86-9ca1c4-df774e-221f2d-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