#66E6F0#66E6F0

#66E6F0 is a very light, moderate teal. Relative luminance 0.657; OKLCH L 85.7% C 0.113 H 202.3°. Best body text is #000000 at 14.14:1 contrast (WCAG AA passes).

Color values

HEX#66E6F0
RGBrgb(102, 230, 240)
HSLhsl(184, 82%, 67%)
HSVhsv(184, 58%, 94%)
CMYKcmyk(57.5%, 4.2%, 0%, 5.9%)
CIE-LABlab(84.85, -32.41, -15.54)
CIE-LCHlch(84.85, 35.94, 205.62°)
OKLaboklab(85.7% -0.1048 -0.043)
OKLCHoklch(85.7% 0.113 202.3)
XYZxyz(49.4979, 65.7047, 92.4949)
Luminance0.6571 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66E6F0 #F07066
analogous
#66F0B5 #66E6F0 #66A1F0
triadic
#66E6F0 #F066E6 #E6F066
tetradic
#66E6F0 #B566F0 #F07066 #A1F066
square
#66E6F0 #B566F0 #F07066 #A1F066
split-complementary
#66E6F0 #F066A1 #F0B566
monochromatic
#14BBC8 #2EDDEB #66E6F0 #9EEFF5 #D5F8FB

Accessibility & contrast

On white

1.48
#66E6F0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.14
#66E6F0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E6F0
14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66E6F0#FFFFFF#000000##000000
##66E6F01.001.4814.1414.14
#FFFFFF1.481.0021.0021.00
#00000014.1421.001.001.00
##00000014.1421.001.001.00

Color blindness preview

Protanopia (red-blind)
#D6DDF1
Deuteranopia (green-blind)
#C1CDF1
Tritanopia (blue-blind)
#00EEE9
Achromatopsia (no color)
#D4D4D4

Design tokens & code

CSS
--color: #66e6f0;
/* rgb */ color: rgb(102, 230, 240);
/* oklch */ color: oklch(85.7% 0.113 202.3);
Tailwind
colors: {
  custom: {
    50: '#9eeef5',
    500: '#66e6f0',
    950: '#000000',
  },
}
SCSS
$custom: #66e6f0;
$custom-light: #9eeef5;
$custom-dark: #000000;
JSON
{
  "hex": "#66e6f0",
  "rgb": {
    "r": 102,
    "g": 230,
    "b": 240
  },
  "hsl": {
    "h": 184.348,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.85701,
    "c": 0.11327,
    "h": 202.3
  },
  "luminance": 0.6571
}

Semantic roles & 50–950 ramp

primary
#66E6F0
secondary
#C54035
accent
#1707DF
background
#FCFFFF
surface
#F6FEFE
border
#D0D6D6
text
#101617
muted
#808585

Preview Lab

Preview with #66E6F0

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

Preview Lab → · Contrast checker → · Palette generator →

#66E6F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva