Color

#23407b

#23407b
hex#23407b
rgbrgb(35, 64, 123)
hslhsl(220, 56%, 31%)
oklchoklch(0.383 0.106 262.7)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0545

Colors that go with #23407b

Steel Blue, Blue and Crimson 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 →

#7b5e23

#236d7b · #32237b

#7b2340 · #407b23

Split-complementary

Open in tool →

#7b3223 · #6d7b23

#7b236d · #7b5e23 · #237b32

Contrast

#23407b as textRatioAAAA largeAAAFix
Aaon white
10.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #4874cb as the text (4.64:1)
  • AAA: use #7495d8 as the text (7.03:1)
  • AA: or shift the background to #b0b0b0 (4.63:1)
  • AAA: or shift the background to #d9d9d9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23407b 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

#23407b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23407b
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 #23407b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23407b-9ca5c4-df694e-211f2d-e9f0f1?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