#66E5DB#66E5DB

#66E5DB is a very light, moderate teal. Relative luminance 0.640; OKLCH L 84.8% C 0.114 H 188.2°. Best body text is #000000 at 13.80:1 contrast (WCAG AA passes).

Color values

HEX#66E5DB
RGBrgb(102, 229, 219)
HSLhsl(175, 71%, 65%)
HSVhsv(175, 55%, 90%)
CMYKcmyk(55.5%, 0%, 4.4%, 10.2%)
CIE-LABlab(83.95, -37.47, -5.79)
CIE-LCHlch(83.95, 37.91, 188.78°)
OKLaboklab(84.78% -0.1124 -0.0162)
OKLCHoklch(84.78% 0.114 188.2)
XYZxyz(46.2794, 63.9733, 76.9133)
Luminance0.6398 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66E5DB #E56670
analogous
#66E59C #66E5DB #66AFE5
triadic
#66E5DB #DB66E5 #E5DB66
tetradic
#66E5DB #9C66E5 #E56670 #AFE566
square
#66E5DB #9C66E5 #E56670 #AFE566
split-complementary
#66E5DB #E566AF #E59C66
monochromatic
#1EB2A7 #32DCCF #66E5DB #9AEEE7 #CFF7F4

Accessibility & contrast

On white

1.52
#66E5DB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.80
#66E5DB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E5DB
13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66E5DB#FFFFFF#000000##000000
##66E5DB1.001.5213.8013.80
#FFFFFF1.521.0021.0021.00
#00000013.8021.001.001.00
##00000013.8021.001.001.00

Color blindness preview

Protanopia (red-blind)
#DADADB
Deuteranopia (green-blind)
#C6CBDC
Tritanopia (blue-blind)
#00EAE2
Achromatopsia (no color)
#D1D1D1

Design tokens & code

CSS
--color: #66e5db;
/* rgb */ color: rgb(102, 229, 219);
/* oklch */ color: oklch(84.8% 0.114 188.2);
Tailwind
colors: {
  custom: {
    50: '#9dede6',
    500: '#66e5db',
    950: '#000000',
  },
}
SCSS
$custom: #66e5db;
$custom-light: #9dede6;
$custom-dark: #000000;
JSON
{
  "hex": "#66e5db",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 219
  },
  "hsl": {
    "h": 175.276,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.84778,
    "c": 0.11361,
    "h": 188.2
  },
  "luminance": 0.63978
}

Semantic roles & 50–950 ramp

primary
#66E5DB
secondary
#B33C46
accent
#1322D3
background
#FCFFFE
surface
#F6FEFC
border
#D0D6D5
text
#0F1615
muted
#808584

Preview Lab

Preview with #66E5DB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#66E5DB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva