Color

#00d3eb

#00d3eb
hex#00d3eb
rgbrgb(0, 211, 235)
hslhsl(186, 100%, 46%)
oklchoklch(0.794 0.137 209.2)
Closest name: darkturquoise (#00ced1)Relative luminance 0.5259

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb1700

#00eb8d · #005eeb

#eb00d3 · #d3eb00

Split-complementary

Open in tool →

#eb005e · #eb8d00

#8d00eb · #eb1700 · #5eeb00

Contrast

#00d3eb as textRatioAAAA largeAAAFix
Aaon white
1.82:1failfailfail
  • AA: use #00818f as the text (4.63:1)
  • AAA: use #00606b as the text (7.28:1)
  • AA: or shift the background to #4d4d4d (4.64:1)
  • AAA: or shift the background to #303030 (7.24:1)
Aaon black
11.52:1passpasspassPasses 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 #00d3eb as the background.

Brands using this color

Fonts for this mood

#00d3eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00d3eb
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 #00d3eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00d3eb-a2b8be-df4e86-1f262d-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