Color

#1bd5de

#1bd5de
hex#1bd5de
rgbrgb(27, 213, 222)
hslhsl(183, 78%, 49%)
oklchoklch(0.795 0.132 200.4)
Closest name: darkturquoise (#00ced1)Relative luminance 0.531

Colors that go with #1bd5de

Charcoal, Light Coral and Crimson 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 →

#de251b

#1bde87 · #1b73de

#de1bd5 · #d5de1b

Split-complementary

Open in tool →

#de1b73 · #de871b

#871bde · #de251b · #73de1b

Contrast

#1bd5de as textRatioAAAA largeAAAFix
Aaon white
1.81:1failfailfail
  • AA: use #118288 as the text (4.59:1)
  • AAA: use #0c5f64 as the text (7.4:1)
  • AA: or shift the background to #4f4f4f (4.53:1)
  • AAA: or shift the background to #303030 (7.3:1)
Aaon black
11.62:1passpasspassPasses 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 #1bd5de as the background.

Brands using this color

Fonts for this mood

#1bd5de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1bd5de
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 #1bd5de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bd5de-a2b9be-d4598e-1f262d-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