Color

#3dd8ff

#3dd8ff
hex#3dd8ff
rgbrgb(61, 216, 255)
hslhsl(192, 100%, 62%)
oklchoklch(0.82 0.135 219.1)
Closest name: lightskyblue (#87cefa)Relative luminance 0.5732

Colors that go with #3dd8ff

Charcoal, Crimson and Dodger 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff643d

#3dffc5 · #3d77ff

#ff3dd8 · #d8ff3d

Split-complementary

Open in tool →

#ff3d77 · #ffc53d

#c53dff · #ff643d · #77ff3d

Contrast

#3dd8ff as textRatioAAAA largeAAAFix
Aaon white
1.68:1failfailfail
  • AA: use #007e9e as the text (4.69:1)
  • AAA: use #005e75 as the text (7.35:1)
  • AA: or shift the background to #525252 (4.64:1)
  • AAA: or shift the background to #363636 (7.17:1)
Aaon black
12.46:1passpasspassPasses 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 #3dd8ff as the background.

Brands using this color

Fonts for this mood

#3dd8ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3dd8ff
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 #3dd8ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dd8ff-a2b5be-df4e77-1f242d-e9f1ef?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