Color

#23acfb

#23acfb
hex#23acfb
rgbrgb(35, 172, 251)
hslhsl(202, 96%, 56%)
oklchoklch(0.712 0.158 241.4)
Closest name: Cerulean (#55aaee)Relative luminance 0.3683

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb7223

#23fbde · #2340fb

#fb23ac · #acfb23

Split-complementary

Open in tool →

#fb2340 · #fbde23

#de23fb · #fb7223 · #40fb23

Contrast

#23acfb as textRatioAAAA largeAAAFix
Aaon white
2.51:1failfailfail
  • AA: use #047abe as the text (4.63:1)
  • AAA: use #035d91 as the text (7.05:1)
  • AA: or shift the background to #383838 (4.67:1)
  • AAA: or shift the background to #171717 (7.14:1)
Aaon black
8.37:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23acfb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#23acfb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23acfb
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 #23acfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23acfb-9cb1c4-df4e5f-1f222d-e9f1f0?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