#66CEEC#66CEEC

#66CEEC is a light, moderate cyan. Relative luminance 0.530; OKLCH L 80.1% C 0.105 H 219.3°. Best body text is #000000 at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#66CEEC
RGB	rgb(102, 206, 236)
HSL	hsl(193, 78%, 66%)
HSV	hsv(193, 57%, 93%)
CMYK	cmyk(56.8%, 12.7%, 0%, 7.5%)
CIE-LAB	lab(77.89, -21.79, -23.95)
CIE-LCH	lch(77.89, 32.37, 227.70°)
OKLab	oklab(80.07% -0.0812 -0.0665)
OKLCH	oklch(80.07% 0.105 219.3)
XYZ	xyz(42.6852, 53.0194, 87.3249)
Luminance	0.5302 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CEEC #EC8466

analogous

#66ECC7 #66CEEC #668BEC

triadic

#66CEEC #EC66CE #CEEC66

tetradic

#66CEEC #C766EC #EC8466 #8BEC66

square

#66CEEC #C766EC #EC8466 #8BEC66

split-complementary

#66CEEC #EC668B #ECC766

monochromatic

#189AC0 #30BDE5 #66CEEC #9CDFF3 #D3F1FA

Accessibility & contrast

On white

1.81

#66CEEC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.60

#66CEEC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CEEC

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CEEC	#FFFFFF	#000000	##000000
##66CEEC	1.00	1.81	11.60	11.60
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.60	21.00	1.00	1.00
##000000	11.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC9EE

Deuteranopia (green-blind)

#A7BAEC

Tritanopia (blue-blind)

#00D8D7

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66ceec;
/* rgb */ color: rgb(102, 206, 236);
/* oklch */ color: oklch(80.1% 0.105 219.3);

Tailwind

colors: {
  custom: {
    50: '#9cddf2',
    500: '#66ceec',
    950: '#000000',
  },
}

SCSS

$custom: #66ceec;
$custom-light: #9cddf2;
$custom-dark: #000000;

JSON

{
  "hex": "#66ceec",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 236
  },
  "hsl": {
    "h": 193.433,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.80069,
    "c": 0.10493,
    "h": 219.3
  },
  "luminance": 0.53024
}

Semantic roles & 50–950 ramp

primary

#66CEEC

secondary

#BE5638

accent

#3A0BDA

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #66CEEC

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

Preview Lab → · Contrast checker → · Palette generator →