Color

#23347b

#23347b
hex#23347b
rgbrgb(35, 52, 123)
hslhsl(228, 56%, 31%)
oklchoklch(0.356 0.122 269.1)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0424

Colors that go with #23347b

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 →

#7b6a23

#23617b · #3d237b

#7b2334 · #347b23

Split-complementary

Open in tool →

#7b3d23 · #617b23

#7b2361 · #7b6a23 · #237b3d

Contrast

#23347b as textRatioAAAA largeAAAFix
Aaon white
11.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.85:1failfailfail
  • AA: use #5870d0 as the text (4.64:1)
  • AAA: use #8092db as the text (7.05:1)
  • AA: or shift the background to #a3a3a3 (4.5:1)
  • AAA: or shift the background to #cccccc (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23347b 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

#23347b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23347b
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 #23347b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23347b-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