Color

#233abe

#233abe
hex#233abe
rgbrgb(35, 58, 190)
hslhsl(231, 69%, 44%)
oklchoklch(0.43 0.206 267.8)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.071

Colors that go with #233abe

Charcoal, Sea Green and Steel 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.

Real palettes that use #233abe

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bea623

#2387be · #5923be

#be233a · #3abe23

Split-complementary

Open in tool →

#be5923 · #87be23

#be2387 · #bea623 · #23be59

Contrast

#233abe as textRatioAAAA largeAAAFix
Aaon white
8.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #576ce0 as the text (4.63:1)
  • AAA: use #8291e8 as the text (7.16:1)
  • AA: or shift the background to #bdbdbd (4.62:1)
  • AAA: or shift the background to #e8e8e8 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #233abe 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

#233abe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/233abe-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