Color

#23b3cd

#23b3cd
hex#23b3cd
rgbrgb(35, 179, 205)
hslhsl(189, 71%, 47%)
oklchoklch(0.707 0.118 213.8)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3701

Colors that go with #23b3cd

Charcoal, Tomato and Denim 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 →

#cd3c23

#23cd91 · #235ecd

#cd23b3 · #b3cd23

Split-complementary

Open in tool →

#cd235e · #cd9123

#9123cd · #cd3c23 · #5ecd23

Contrast

#23b3cd as textRatioAAAA largeAAAFix
Aaon white
2.5:1failfailfail
  • AA: use #198294 as the text (4.5:1)
  • AAA: use #125f6d as the text (7.28:1)
  • AA: or shift the background to #383838 (4.69:1)
  • AAA: or shift the background to #171717 (7.17:1)
Aaon black
8.4:1passpasspassPasses 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 #23b3cd as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#23b3cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #23b3cd
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 #23b3cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23b3cd-a2b7be-df4e7e-1f252d-e9f1ee?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