#66D4E5#66D4E5

#66D4E5 is a light, moderate teal. Relative luminance 0.556; OKLCH L 81.2% C 0.103 H 208.8°. Best body text is #000000 at 12.11:1 contrast (WCAG AA passes).

Color values

HEX#66D4E5
RGBrgb(102, 212, 229)
HSLhsl(188, 71%, 65%)
HSVhsv(188, 55%, 90%)
CMYKcmyk(55.5%, 7.4%, 0%, 10.2%)
CIE-LABlab(79.37, -26.75, -17.96)
CIE-LCHlch(79.37, 32.21, 213.88°)
OKLaboklab(81.18% -0.0903 -0.0497)
OKLCHoklch(81.18% 0.103 208.8)
XYZxyz(43.1601, 55.5648, 82.5641)
Luminance0.5557 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66D4E5 #E57766
analogous
#66E5B6 #66D4E5 #6695E5
triadic
#66D4E5 #E566D4 #D4E566
tetradic
#66D4E5 #B666E5 #E57766 #95E566
square
#66D4E5 #B666E5 #E57766 #95E566
split-complementary
#66D4E5 #E56695 #E5B666
monochromatic
#1E9EB2 #32C5DC #66D4E5 #9AE3EE #CFF1F7

Accessibility & contrast

On white

1.73
#66D4E5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.11
#66D4E5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D4E5
12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66D4E5#FFFFFF#000000##000000
##66D4E51.001.7312.1112.11
#FFFFFF1.731.0021.0021.00
#00000012.1121.001.001.00
##00000012.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#C4CDE6
Deuteranopia (green-blind)
#B0BEE5
Tritanopia (blue-blind)
#00DCD9
Achromatopsia (no color)
#C5C5C5

Design tokens & code

CSS
--color: #66d4e5;
/* rgb */ color: rgb(102, 212, 229);
/* oklch */ color: oklch(81.2% 0.103 208.8);
Tailwind
colors: {
  custom: {
    50: '#9ce1ed',
    500: '#66d4e5',
    950: '#000000',
  },
}
SCSS
$custom: #66d4e5;
$custom-light: #9ce1ed;
$custom-dark: #000000;
JSON
{
  "hex": "#66d4e5",
  "rgb": {
    "r": 102,
    "g": 212,
    "b": 229
  },
  "hsl": {
    "h": 188.031,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.81178,
    "c": 0.10304,
    "h": 208.8
  },
  "luminance": 0.55569
}

Semantic roles & 50–950 ramp

primary
#66D4E5
secondary
#B34C3C
accent
#2C13D3
background
#FCFEFE
surface
#F6FCFD
border
#D0D5D5
text
#0F1516
muted
#808484

Preview Lab

Preview with #66D4E5

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

Preview Lab → · Contrast checker → · Palette generator →

#66D4E5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva