#66ECF0#66ECF0

#66ECF0 is a very light, moderate teal. Relative luminance 0.691; OKLCH L 87.1% C 0.117 H 197.9°. Best body text is #000000 at 14.82:1 contrast (WCAG AA passes).

Color values

HEX#66ECF0
RGBrgb(102, 236, 240)
HSLhsl(182, 82%, 67%)
HSVhsv(182, 58%, 94%)
CMYKcmyk(57.5%, 1.7%, 0%, 5.9%)
CIE-LABlab(86.55, -35.22, -12.98)
CIE-LCHlch(86.55, 37.54, 200.23°)
OKLaboklab(87.08% -0.111 -0.0359)
OKLCHoklch(87.08% 0.117 197.9)
XYZxyz(51.1964, 69.1017, 93.0611)
Luminance0.6911 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66ECF0 #F06A66
analogous
#66F0AF #66ECF0 #66A7F0
triadic
#66ECF0 #F066EC #ECF066
tetradic
#66ECF0 #AF66F0 #F06A66 #A7F066
square
#66ECF0 #AF66F0 #F06A66 #A7F066
split-complementary
#66ECF0 #F066A7 #F0AF66
monochromatic
#14C3C8 #2EE5EB #66ECF0 #9EF3F5 #D5FAFB

Accessibility & contrast

On white

1.42
#66ECF0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.82
#66ECF0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECF0
14.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66ECF0#FFFFFF#000000##000000
##66ECF01.001.4214.8214.82
#FFFFFF1.421.0021.0021.00
#00000014.8221.001.001.00
##00000014.8221.001.001.00

Color blindness preview

Protanopia (red-blind)
#DDE2F1
Deuteranopia (green-blind)
#C7D2F1
Tritanopia (blue-blind)
#00F3ED
Achromatopsia (no color)
#D9D9D9

Design tokens & code

CSS
--color: #66ecf0;
/* rgb */ color: rgb(102, 236, 240);
/* oklch */ color: oklch(87.1% 0.117 197.9);
Tailwind
colors: {
  custom: {
    50: '#9ff2f4',
    500: '#66ecf0',
    950: '#000000',
  },
}
SCSS
$custom: #66ecf0;
$custom-light: #9ff2f4;
$custom-dark: #000000;
JSON
{
  "hex": "#66ecf0",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 240
  },
  "hsl": {
    "h": 181.739,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.8708,
    "c": 0.11664,
    "h": 197.9
  },
  "luminance": 0.69107
}

Semantic roles & 50–950 ramp

primary
#66ECF0
secondary
#C53935
accent
#0D07DF
background
#FDFFFF
surface
#F7FEFE
border
#D0D6D6
text
#101717
muted
#818585

Preview Lab

Preview with #66ECF0

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

Preview Lab → · Contrast checker → · Palette generator →

#66ECF0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva