Color

#4373cb

#4373cb
hex#4373cb
rgbrgb(67, 115, 203)
hslhsl(219, 57%, 53%)
oklchoklch(0.566 0.146 261.4)
Closest name: God of Rain (#4466cc)Relative luminance 0.1777

Colors that go with #4373cb

Charcoal, Sea Green and Amber 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 →

#cb9c43

#43b7cb · #5743cb

#cb4373 · #73cb43

Split-complementary

Open in tool →

#cb5743 · #b7cb43

#cb43b7 · #cb9c43 · #43cb57

Contrast

#4373cb as textRatioAAAA largeAAAFix
Aaon white
4.61:1passpassfail
  • AAA: use #2c55a0 as the text (7.21:1)
Aaon black
4.55:1passpassfail
  • AAA: use #7396d9 as the text (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 #4373cb 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

#4373cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4373cb
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 #4373cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4373cb-9ca5c4-df664e-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