#66CBE5#66CBE5

#66CBE5 is a light, moderate cyan. Relative luminance 0.512; OKLCH L 79.1% C 0.101 H 216.9°. Best body text is #000000 at 11.24:1 contrast (WCAG AA passes).

Color values

HEX#66CBE5
RGBrgb(102, 203, 229)
HSLhsl(192, 71%, 65%)
HSVhsv(192, 55%, 90%)
CMYKcmyk(55.5%, 11.4%, 0%, 10.2%)
CIE-LABlab(76.79, -22.27, -21.85)
CIE-LCHlch(76.79, 31.20, 224.46°)
OKLaboklab(79.12% -0.0806 -0.0606)
OKLCHoklch(79.12% 0.101 216.9)
XYZxyz(40.9727, 51.1900, 81.8350)
Luminance0.5119 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66CBE5 #E58066
analogous
#66E5BF #66CBE5 #668CE5
triadic
#66CBE5 #E566CB #CBE566
tetradic
#66CBE5 #BF66E5 #E58066 #8CE566
square
#66CBE5 #BF66E5 #E58066 #8CE566
split-complementary
#66CBE5 #E5668C #E5BF66
monochromatic
#1E94B2 #32B9DC #66CBE5 #9ADDEE #CFEFF7

Accessibility & contrast

On white

1.87
#66CBE5 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.24
#66CBE5 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CBE5
11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66CBE5#FFFFFF#000000##000000
##66CBE51.001.8711.2411.24
#FFFFFF1.871.0021.0021.00
#00000011.2421.001.001.00
##00000011.2421.001.001.00

Color blindness preview

Protanopia (red-blind)
#BAC6E6
Deuteranopia (green-blind)
#A7B7E5
Tritanopia (blue-blind)
#00D4D3
Achromatopsia (no color)
#BEBEBE

Design tokens & code

CSS
--color: #66cbe5;
/* rgb */ color: rgb(102, 203, 229);
/* oklch */ color: oklch(79.1% 0.101 216.9);
Tailwind
colors: {
  custom: {
    50: '#9bdbed',
    500: '#66cbe5',
    950: '#000000',
  },
}
SCSS
$custom: #66cbe5;
$custom-light: #9bdbed;
$custom-dark: #000000;
JSON
{
  "hex": "#66cbe5",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 229
  },
  "hsl": {
    "h": 192.283,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.79116,
    "c": 0.10085,
    "h": 216.9
  },
  "luminance": 0.51194
}

Semantic roles & 50–950 ramp

primary
#66CBE5
secondary
#B3553C
accent
#3A13D3
background
#FCFEFE
surface
#F5FBFD
border
#CFD4D5
text
#0F1516
muted
#808484

Preview Lab

Preview with #66CBE5

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

Preview Lab → · Contrast checker → · Palette generator →

#66CBE5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva