#66E5F5#66E5F5

#66E5F5 is a very light, moderate teal. Relative luminance 0.655; OKLCH L 85.6% C 0.114 H 206.6°. Best body text is #000000 at 14.09:1 contrast (WCAG AA passes).

Color values

HEX#66E5F5
RGBrgb(102, 229, 245)
HSLhsl(187, 88%, 68%)
HSVhsv(187, 58%, 96%)
CMYKcmyk(58.4%, 6.5%, 0%, 3.9%)
CIE-LABlab(84.72, -30.56, -18.38)
CIE-LCHlch(84.72, 35.66, 211.02°)
OKLaboklab(85.65% -0.1018 -0.0509)
OKLCHoklch(85.65% 0.114 206.6)
XYZxyz(49.9734, 65.4509, 96.3682)
Luminance0.6546 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66E5F5 #F57666
analogous
#66F5BD #66E5F5 #669EF5
triadic
#66E5F5 #F566E5 #E5F566
tetradic
#66E5F5 #BD66F5 #F57666 #9EF566
square
#66E5F5 #BD66F5 #F57666 #9EF566
split-complementary
#66E5F5 #F5669E #F5BD66
monochromatic
#0EBDD3 #2DDBF1 #66E5F5 #9FEFF9 #D9F9FD

Accessibility & contrast

On white

1.49
#66E5F5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.09
#66E5F5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E5F5
14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66E5F5#FFFFFF#000000##000000
##66E5F51.001.4914.0914.09
#FFFFFF1.491.0021.0021.00
#00000014.0921.001.001.00
##00000014.0921.001.001.00

Color blindness preview

Protanopia (red-blind)
#D4DDF6
Deuteranopia (green-blind)
#BECDF5
Tritanopia (blue-blind)
#00EEEA
Achromatopsia (no color)
#D3D3D3

Design tokens & code

CSS
--color: #66e5f5;
/* rgb */ color: rgb(102, 229, 245);
/* oklch */ color: oklch(85.6% 0.114 206.6);
Tailwind
colors: {
  custom: {
    50: '#9fedf8',
    500: '#66e5f5',
    950: '#000000',
  },
}
SCSS
$custom: #66e5f5;
$custom-light: #9fedf8;
$custom-dark: #000000;
JSON
{
  "hex": "#66e5f5",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 245
  },
  "hsl": {
    "h": 186.713,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.85648,
    "c": 0.11378,
    "h": 206.6
  },
  "luminance": 0.65456
}

Semantic roles & 50–950 ramp

primary
#66E5F5
secondary
#CE4331
accent
#1B01E4
background
#FDFFFF
surface
#F7FEFF
border
#D0D6D7
text
#101617
muted
#818585

Preview Lab

Preview with #66E5F5

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

Preview Lab → · Contrast checker → · Palette generator →

#66E5F5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva