Color

#233cfb

#233cfb
hex#233cfb
rgbrgb(35, 60, 251)
hslhsl(233, 96%, 56%)
oklchoklch(0.498 0.275 266.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.1055

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbe123

#23a8fb · #7623fb

#fb233c · #3cfb23

Split-complementary

Open in tool →

#fb7623 · #a8fb23

#fb23a8 · #fbe123 · #23fb76

Contrast

#233cfb as textRatioAAAA largeAAAFix
Aaon white
6.75:1passpassfail
  • AAA: use #1933fa as the text (7.25:1)
Aaon black
3.11:1failpassfail
  • AA: use #5064fb as the text (4.56:1)
  • AAA: use #7d8cfc as the text (7.03:1)
  • AA: or shift the background to #d4d4d4 (4.55:1)

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

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

mcpConnect your agent — build around #233cfb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #233cfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/233cfb-9c9cc4-df884e-241f2d-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