Cyan

TurquoiseBlue

#00FFEF
HEX
#00FFEF
RGB
rgb(0, 255, 239)
HSL
hsl(176, 100%, 50%)

Cyan family

About TurquoiseBlue

TurquoiseBlue (#00FFEF) is a medium, vivid cyan. Cyan blends blue's calm with green's freshness, evoking clear water and open skies with a crisp, modern, slightly techy feel.

Psychology

Cyan feels clean, refreshing and clear-headed. It suggests clarity, innovation and cool efficiency, and it is less heavy than deep blue while still reading as calm and trustworthy.

Applications

Cyan and teal are staples of tech, travel, healthcare and aquatic brands. They are excellent for gradients, links, accents and data visualizations, and pair beautifully with navy, white and warm neutrals.

History

Cyan has long been a secondary hue in printing; together with magenta, yellow and black it forms the CMYK process that reproduces full-color images. Its modern popularity grew with digital displays and tech branding.

Meaning

Cyan is associated with clarity, freshness and modernity. It can evoke tropical water, cool air and precision, making it a favorite for brands that want to feel clean and contemporary.

Why use this color

Use cyan when you want a design to feel fresh, modern and trustworthy without the formality of navy. It is ideal for tech, health and travel brands and for crisp UI accents.

Accessibility

Against white, #00FFEF has a 1.3:1 contrast ratio; against black it is 16.6:1. Black text on #00FFEF meets WCAG AA for normal text.

Fun facts

  • Cyan is one of the three primary colors of the CMYK printing process.
  • The word cyan comes from the Greek kyanos, meaning dark blue.
  • Cyan ink, together with magenta and yellow, can reproduce most printed colors.

Shades, tints & tones

Variations

Ten lightness steps plus TurquoiseBlue's tints, shades and tones — every swatch copies its hex on click.

Lightness scale

Tints (toward white)

Shades (toward black)

Tones (toward gray)

Color theory

Color harmonies

Proven schemes built around TurquoiseBlue. Each swatch is one click from your clipboard.

Complementary

#00ffee#ff0011

Analogous

#00ff6e#00ffee#0091ff

Triadic

#00ffee#ee00ff#ffee00

Split-complementary

#00ffee#ff0090#ff6f00

Tetradic

#00ffee#6f00ff#ff0011#91ff00

Monochromatic

#004d47#00a398#00ffee#5cfff4#b3fffa

Accessibility

Blindness simulator

See how TurquoiseBlue is perceived with common types of color vision deficiency.

#00FFEF

Normal vision

Standard trichromatic vision, shown for reference.

#f1f0ef

Protanopia

Red-blind. Reds look darker and can be confused with greens and browns.

#d5dcf1

Deuteranopia

Green-blind. Greens look muted and can be confused with reds and browns.

#00fffa

Tritanopia

Blue-blind. Blues look greenish and yellows fade toward pink.

#e4e4e4

Achromatopsia

Complete color blindness. Everything is seen in shades of gray.

WCAG

Contrast checker

How TurquoiseBlue performs against black and white text, with WCAG AA and AAA ratings.

AaWhite on TurquoiseBlue
1.27:1
AAAAAAA LargeAAA Large
AaBlack on TurquoiseBlue
16.55:1
AAAAAAA LargeAAA Large

The ratio is identical whether TurquoiseBlue is used as the text or the background.

Open the full checker

Ready to use

Color palettes

Curated palettes that put TurquoiseBlue to work, with copy-all support for each.

Complementary

Roughly 180° across the wheel from #00FFEF (hue 176°) sits #ff0011, held together by the #86f9f1 tint and the neutrals #f4f4f5 and #18181b.

Analogous

#00FFEF with its two closest neighbours, #00ff6e and #0091ff, for a 100%-saturation run that stays inside one family; #86f9f1 and #008077 add depth without breaking it.

Triadic

#00FFEF plus #ee00ff and #ffee00, a triangle that sits 120° apart at every corner, with #f4f4f5 and #18181b doing the quiet work underneath.

Monochromatic

One hue at 5 lightness steps: #ebfffe through #001f1d, starting from #00FFEF at 50% lightness.

TurquoiseBlue (#00FFEF) is a cyan-family color. Use its values, variations, harmonies and palettes above to put it to work in your next design.

Frequently asked questions

TurquoiseBlue is #00FFEF — rgb(0, 255, 239) / hsl(176, 100%, 50%). TurquoiseBlue (#00FFEF) is a medium, vivid cyan. Cyan blends blue's calm with green's freshness, evoking clear water and open skies with a crisp, modern, slightly techy feel.

Good to know

  • TurquoiseBlue is one of 609 named colors in the library.
  • Its complementary hue sits 180° away on the color wheel: #ff0011.

More color tools

Next steps for TurquoiseBlue: each of these picks the value up where this page leaves off, so nothing gets retyped or re-uploaded.